Models are simplified representations that make it possible to study very large, very small, or very complex objects or systems.
The large number of potential gene make it unlikely that any two people will be identical. urgentttttttttttttttt 1. mutattions 2. combonations 3. frequency
The correct answer is option 2, that is, combinations.
The production of offspring with combinations of traits, which vary from those found in either of the parents is known as genetic reshuffling or genetic recombination. The genetic recombination, in eukaryotes, can result in the generation of a new set of genetic information, which can be conducted on from the parents to the offspring. Due to these variations, it is unlikely that any two individuals will be similar.
What level comes just after atoms in the organization chart of living things ?
atoms are not in the organization i dont think
What disease is caused by misshaped red blood cells that prevent oxygen from properly reaching other parts of the body?
which step of mitosis involves the nucleus splitting and nuclear membranes forming around each new nucleus
Mitosis actually happens in four phases. The first phase of mitosis through which chromatin condenses into chromosomes, the nuclear case breaks down, centrioles divide, and a spindle begins to form. Microtubule fibres that enable the division of sister chromatids during mitosis and meiosis.
Every early childhood education program should develop a
A high caliber early youth program build up a safe and sustaining condition while advancing the physical, social, passionate, and scholarly advancement of youthful youngsters. Early adolescence is commonly characterized as birth through age eight. Base is important.
Every early childhood education program should develop a C. written nutrition, feeding, and food service plan that focuses on balanced meals, a structured mealtime environment, and a positive dining experience.
The question relates to the nutritional aspects of early childhood education programs. Every early childhood education program should develop a written nutrition, feeding, and food service plan. This plan can help to ensure that children receive balanced meals that encourage eating competence, as well as help to facilitate a structured and positive mealtime environment. The plan could include guidelines for providing structured, sit-down meals and snacks at predictable times, deciding what foods will be offered, and making mealtimes pleasant. It is essential to avoid the expectation that different meals will be made for each child, also known as the 'no short order chefs' rule. Instead, offering diverse food options, teaching table manners, and creating a positive and stress-free atmosphere can contribute to a child's healthy relationship with food and enhance their social skills during mealtimes. Recognizing that appetite varies and mealtimes should not be stressful is also an integral part of this approach.
What does this extreme drop between November and December most likely represent?
Answer:A reflection of the migratory nature of the birds at the lake
Explanation:
I just got it right
After her run aisha felt thirsty.thirst was her body way of telling her she needes more water to maintain
Thirst is a signal from the body to maintain fluid balance by increasing water intake, particularly when dehydration threatens bodily function. Dehydration can seriously impair cellular activities, and the body uses various mechanisms, including the sensation of thirst, to regulate water balance.
Explanation:Thirst is an essential sensation that signals the need for hydration, which is vital for proper bodily function. The body maintains water balance through complex physiological processes including the sensation of thirst.
Dehydration occurs when the loss of water exceeds intake, leading to reduced body water content. This can impair cellular function and can be especially dangerous in conditions like extreme heat or during physical activity, where water loss through sweating is increased.
When a person becomes dehydrated, osmoreceptors in the hypothalamus detect increased blood osmolality, triggering the release of antidiuretic hormone (ADH) and stimulating the conscious feeling of thirst. Thus, it is crucial to heed thirst signals and ensure adequate water intake to maintain the body's fluid balance for optimal health and performance.
Approximately how many moons does Saturn have
Saturn has 62 confirmed moons of which 9 are waiting to be officially named. Saturn's largest moon Titan is bigger than both Mercury and Pluto. Titan has a very thick atmosphere which is mostly nitrogen. Earth's atmosphere is also mostly nitrogen. Saturn also has many icy moons like Mimas which has a large crater that is 1/4 the diameter of the moon, and Enceladus which has very dark material covering one side and very bright material on the other side. Some of Saturn's smaller moons help keep Saturn's rings stable by orbiting in or near the rings. These moons are called "shepherd moons" and use their gravity to keep the small ring particles in a stable orbit. Some of the gaps in Saturn's rings are caused by these moons. More moons are constantly being discovered so check the NASA Saturn site for the latest.
Why do birds have enough energy to fly
They have enough energy to fly because, Birds have a very strong heart and an efficient way of breathing. And, these are necessary for birds to fly. Birds also use a lot of energy while flying and need to eat a lot of food to power their flight.
If it doesn't answer your question. Don't hesitate to comment your opinion below!
what patterns do you notice? describe three patterns
was there something attached to this- if not here are 3 patters
2,2,2,1,1,2,2,2,1,1
it starts with repeating the number 2 three times and then repeating the number 1 twice and repeats.
T,T,A,A
2 T and 2 A repeating
TRIANGLE, SQUARE, RECTANGLE TRIANGLE, SQUARE, RECTANGLE
it repeats the same pattern
There's a good evidence that a meteor hit earth about 65 million years ago which of the following events that the scientist think were triggered by the impact could have caused the Simultaneous global extinction of multiple species including all of the dinosaurs
Is this a true or false question?
Why is 2 the correct answer???!!!
I’m horrible at science. HELP ASAP!!!!!
Given that ATP is the product of the reaction, it must be cellular respiration (also, since it occurs in both plants and animals it can't be photosynthesis).
A and B must be glucose and oxygen. It makes sense if you think about it. We breathe in oxygen, and we eat food. Food contains glucose (sugar). We need to consume these things in order to make energy. Carbon dioxide is D because it's the "left over" of this reaction. That's why we exhale it. And C is enzymes because they catalyze (promote) just about every reaction in the body.
Another way to remember this in the future is just to memorize the equation (attached). Just remember that its the exact opposite of photosynthesis.
Help me plz!
1. How different are the wet and dry earwax genes?
A.3 codon difference.
B. switch of a single DNA unit.
C. inversion of a segment of DNA 30 units long.
D. there is no difference, it has to do with a gene being activated.
2. Why is earwax important?
A. It is like biological flypaper, prevents dust and insects from entering the ear.
B. It helps keep noise levels down, protecting our ear drums from bursting.
C. It helps maintain homeostasis.
D. It assists with balance and maintaining a strong equilibrium.
3. Those of us who tend to sweat a lot and have armpit odor probably have what type of earwax?
A. Dry earwax
B. Both wet and dry earwax
C. Sweat and odor have nothing to do with armpit odor
D. Wet earwax
4. Which type of earwax is dominant?
Question 14 options:
A. Dry earwax
B. Wet earwax
C. They exhibit incomplete dominance
D. They exhibit co-dominance
5. If a person with wet earwax had offspring with a person who had dry earwax and all 200 of their children had wet earwax, what would be the genotype of the parent with wet earwax?
A. WW
B. Ww
C. ww
D. can't determine the genotype
Answer 1: Difference b/w wet and dry earwax genes is due to switch of a single DNA unit i.e. single nucleotide polymorphism.
Answer 2: Earwax is important in many ways mainly it is a biological flypaper as it prevents dust and insects from entering the ear.
Answer 3: Genetics have proved that for those who sweat a lot and have armpit odor have wet earwax.
Answer 4: The wet type earwax is dominant one with honey brown or dark brown color while dry one is recessive.
Answer 5: As wet earwax is dominant trait, according to the given scenario the genotype of parent with wet earwax will be "WW" which when crossed with dry earwax parent will have all the offsprings with wet earwax.
A man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children may have all blood types EXCEPT Type
A) A.
B) AB.
C) B.
D) O.
A man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children may have all blood types EXCEPT Type O, which is in option D.
What is the ABO blood group?The ABO blood group system is determined by the presence or absence of two types of antigens (A and B) on the surface of red blood cells and the presence or absence of antibodies against these antigens in the plasma. A person with type A blood has the A antigen on their red blood cells and produces antibodies against the B antigen in their plasma. A person with type AB blood has both A and B antigens on their red blood cells and produces no antibodies against either A or B antigens in their plasma. Therefore, if a man with type A blood (genotype AA or AO) marries a woman with type AB blood (genotype AB), their possible offspring could inherit either the A or B allele from the father and the A and B alleles from the mother, resulting in either blood types A, B, or AB.
Hence, a man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children may have all blood types EXCEPT Type O, which is in option D.
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If a population grows larger than its environmental carrying capacity, then
A) death rate may rise.
B) immigration rate may increase.
C) birth rate may rise significantly.
D) death rate may fall significantly.
A- the Death rate may rise because there might not be enough resources for everyone to live off of.
Answer:
i think the a might be the answer
Explanation:
which may form overtime from the impressiona bird featyer makes in mud? A cast
B mold
C fossil film
D trace fossil
Answer:
D trace fossil
Explanation:
Which terrestrial biome has abundant rainfall?
Rainfall in 1.)_____ is abundant, with 2,000 to 2.) ______ millimeters of rain each year.
1.) A.)coniferous forests
B.) rainforests
C.)temperate deciduous forests
2.) A.)10,000
B.)5,000
C.)3,000
The answer for 1) would be B) Rainforests and 2) would be A) 10,000.
Answer:
1(b) 2(c)
Explanation:
Cyanobacteria, unusual worm like life-forms and marine organisms did not exist in Precambrian Time. Please select the best answer from the choices provided T F
I believe the answer is false, but I am not 100% sure
Answer:
The given statement is false.
Explanation:
The Precambrian era contains all of the time before 600 million years ago. The earth's history before the formation of the oldest rock with observable fossils in them refers to Precambrian era.
The discovery of sediments and other evidence implies the surface temperature of above 0° C during the early part of the Precambrian era.
Traces of hundreds of life forms are found in the microfossils of the Precambrian era. Some of these species were early photosynthesizers. Stromatolites are stratiform structures made from microorganisms, particularly blue-green algae.
So, the statement is false.
Help me plz! I need to find the answers to these to help me study for a quiz! I will make you a brilliants and u get points.
1) How different are the wet and dry earwax genes?
3 codon difference.
switch of a single DNA unit.
inversion of a segment of DNA 30 units long.
there is no difference, it has to do with a gene being activated.
2) Why is earwax important?
It is like biological flypaper, prevents dust and insects from entering the ear.
It helps keep noise levels down, protecting our ear drums from bursting.
It helps maintain homeostasis.
It assists with balance and maintaining a strong equilibrium.
3) Those of us who tend to sweat a lot and have armpit odor probably have what type of earwax?
Dry earwax
Both wet and dry earwax
Sweat and odor have nothing to do with armpit odor
Wet earwax
4) Which type of earwax is dominant?
Dry earwax
Wet earwax
They exhibit incomplete dominance
They exhibit co-dominance
5) If a person with wet earwax had offspring with a person who had dry earwax and all 200 of their children had wet earwax, what would be the genotype of the parent with wet earwax?
WW
Ww
ww
can't determine the genotype
Q 1) How different are the wet and dry earwax genes?
Answer:
switch of a single DNA unit.
Explanation
There is a specific gene that is associated with the ear wax and determine whether the people will have dry ear wax or wet ear wax. This gene is known as "ATP-binding cassette C11 gene"
Dry wax type individuals are homozygous for the gene while wet wax type individual have a difference of only one base where adenine is replaced by Guanine. While wet wax type individuals are heterozygous for the gene which means that wet wax type gene is dominant over dry wax type gene.
So we can say that the genetic difference between two genes i due to a mutation that occurred and changed only a single DNA unit base due to which two phenotypes dry and wet ear wax developed.
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2) Why is earwax important?
Answer:
It is like biological flypaper, prevents dust and insects from entering the ear.
Explanation:
Ear wax is also known as cerumen in medical terms which consists of orange, gray or yellowish waxy material. This material is secreted by ear canal in mammals including humans and this has very important role in human life.
The ear wax helps in the lubrication of ear which serves an important role to protect the ear against insects, fungi, water excess and bacteria.
If we see from outside, this ear wax is comprised of hair,skin cells and secretions from sebaceous and ceruminous glands. The major part of ear wax are unsaturated and saturated fatty acids, squalene, cholesterol and alcohols.
In severe cases, ear wax can also cause blockage of ears due to excessive deposition of wax which can lead to serious hearing disabilities.
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3) Those of us who tend to sweat a lot and have armpit odor probably have what type of earwax?
Answer:
Wet earwax
Explanation:
Studies have reported that individual with wet ear wax particularly have more armpit odor due to enhanced production of sweat.Research suggest that the less sweat or body odor was useful for Native Americans and East Asians who used to live in a cold environment and therefore they had dry ear wax. The mutation causing wet ear was specifically is prevalent area wise in more dry areas of the world like Ainu in Japan however as well as Yamato in Japan.
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Q4: Which type of earwax is dominant?
Answer:
wet ear wax
Explanation:
Wet ear wax trait (WW) or (Ww) is dominant over dry ear wax trait (ww), it means that a single copy of dominant allele W is enough for the offspring to have wet ear wax.
Studies have reported that individual with wet ear wax particularly have more armpit odor due to enhanced production of sweat.Research suggest that the less sweat or body odor was useful for Native Americans and East Asians who used to live in a cold environment and therefore they had dry ear wax.
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Q 5 If a person with wet earwax had offspring with a person who had dry earwax and all 200 of their children had wet earwax, what would be the genotype of the parent with wet earwax?
Answer:
WW
Explanation:
As we just studied that wet ear wax trait is dominant over dry ear wax trait, it means that a single copy of dominant allele W is enough for the offspring to have wet ear wax. So is question, it asked that a person with wet ear wax married a women with dry ear wax and had 200 offspring. All the offspring had wet earwax, so it clealry means that their father was homozygous for wet ear was alleles.
Let us see how:
P1: WW x ww
Gametes: W : w
Offspring: Ww: Ww
So, it means that if all offspring had wet ear wax it means that both parents were pure breeding for respective wax types, dry and wet ear wax. Otherwise there would be some proportion of offspring having wet ear wax as well.
Hope it help!
If a virus kills the entire coyote population in this ecosystem eliminating all the predators of the rabbit. Describe what you would expect to see happen to the organisms in this ecosystem in the next 5-10 years.
The question is assuming that the coyotes are the only predators (hence eliminating all predators of the rabbit).
What would happen is that the rabbit population would continue to thrive throughout the years, until the producers cannot support the rabbits, leading to a mass extinction of the rabbits and the destruction of the ecosystem that used to be there.
What would be some possible effects of connective tissue disease?
Connective tissue disease include some diseases where tissues rich in protein, that support body parts and organs get damaged. These tissues include cartilage, bones and fats and the diseases caused by the damage of these tissues include joints pain, muscles damage and skin damage etc.
However, the problems from Connective tissue disease are not solely confined to these organs and can effect other organs too like kidneys,lungs,heart,eyes,blood vessels and gastrointestinal tract. More than two hundred connective tissue disorders exist that show a variety of effects, Here we will discuss only few:
Epidermolysis bullosa:
This connective tissue disorder effect the skin by making it very fragile that even a minor cut can tear the skin and leave blisters. This occurs due to defect of some proteins.
Marfan syndrome:
This syndrome affects ligaments, heart, eyes, and blood vessels. The people suffering from the disease have very long bones and abnormal placement of eye lenses. This is caused by genetic mutations.
Osteogenesis imperfecta:
This conditions makes the bones very brittle and lowers the mass of joints, muscles and ligaments. It can also cause Curved spine,Thin skin and breathing problems in the person suffering from the disorder.
This also occurs due to mutation of genes.
Polymyositis and dermatomyositis:
In both these disorders, inflammation of skin and muscles occur and can cause symptoms fatigue, weakness, Shortness of breath,Difficulty swallowing ,Weight loss .
Note: These are some of the effects discussed but as mentioned earlier there are more than 200 disorders of connective tissues and their effects can vary from one to another.
Hope it help!
Which two political parties participated in the Election of 1828?
Democratic Republicans and National Republicans
incumbent President John Quincy Adams and chief rival Andrew Jackson
Also know as the republican and demacric
What is the benefit of recycling plastic and paper products to wildlife?
Answer:
There is no doubt that recycling of plastic and paper materials are not only useful for human beings but also for wild life. Here we will discuss some of the reasons how it is useful for wildlife:
If we will recycle more paper, it will save alot of trees from cutting down for fuel, this will maintain eco system in a good health and save more trees.Recycling of plastic materials like vinyl packaging can help in avoiding the dumping off of these plastic materials in landfills and water lakes and oceans. This prevents the life of many water organisms like fish because plastic material release harmful chemicals when discharged in landfill and oceans which cause death of many living organisms inhabiting there.It is estimated that over a trillion plastic bags are used by human beings annually. This plastic material fill the landfill when discharged and release chemicals which seep into surrounding soil and affect the health of plants growing in soil as well as water bodies living there. So recycling of plastic will lessen the number of landfills and overall improve the eco system by maintaining the diversity of wild life.Along with benefit of wildlife , it will also produce clean water, clean beaches and wetlands for human beings which can cherish and enjoy nature more as well as improve their health by minimizing the usage of toxic chemical containing fish or other sea food.Hope it help!
in experiment 3, what was the appearance of the elodea cells in aquarium water a:The chloroplasts were located mostly from the center of the cell b:The chloroplasts were located mostly at the periphery of the cell c:The cell membrane was pressed against the cell wall d: The cell membrane shriveled and pulled away from the cell wall
your answer is C- he cell membrane was pressed against the cell wall
Answer:
The correct answer will be option-B.
Explanation:
Elodea is the aquatic plant which contains all the organelles like a nucleus and cell wall which gives the box-like appearance to the cells. The elodea cells lack a central nucleus.
In the given question, the chloroplast organelle associated with the photosynthesis in plants is observed at the periphery in every plant cell. Few chloroplast cells are distributed in the center.
Thus, Option-B is the correct answer.
Which term is the part of photosynthesis when light energy is captured and transferred to a molecule, such as ATP?
Light dependent reaction
The Calvin cycle will utilize this chemical energy to power the formation of sugar molecules. The reactions that are light-dependent begin in the photosystem, which is made up of pigment molecules and proteins.
What role of light dependent reaction in photosynthesis?In the presence of sunshine, light-dependent processes take place in the thylakoid membrane of the chloroplasts. These processes transform the solar energy into chemical energy.
The photosynthesis process is carried out by the photosystem, which receives energy from the sun through the chlorophyll in plants.
The light-dependent reaction of photosynthesis begins with the absorption of solar energy by pigment molecules.
Therefore, light dependent reaction is the part of photosynthesis when light energy is captured and transferred to a molecule, such as ATP.
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Wild crickets living in a field have a poplulation density of 2.4 crickets per square meter. If the fields area is 250 per square meter, what is the approximate size of the cricket population?
600 crickets per sq meter
2.4 x 250+600
By multiplying the population density (2.4 crickets per square meter) with the total area (250 square meters), we get the total estimated cricket population in the field as 600.
Explanation:In this example, you'd use the concept of Population Density, which refers to the average number of individuals per unit of area. The population density here is 2.4 crickets per square meter, and it's given that the field's area is 250 square meters. So, to find the total population of the crickets, you basically have to multiply the population density by the total area.
The calculation would go as follows: 2.4 crickets/square meter x 250 square meters = 600 crickets.
Thus, based on the data given and the assumption that the population density is fairly distributed, the total cricket population in the field is estimated to be 600.
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is mold that grows on bread a decomposer a producer or a consumer
The mold that grows on bread would be a decomposer. The reason why it would be a decomposer is because when the bread starts molding, it decomposes to get energy from it. The mold in the bread would be a fungi growing on the bread, and fungi decomposes. It wouldn't be a producer because the molds do not produce anything. It would also not be a consumer because it's not consuming anything to make it any better.
It can be considered that mold that grows on bread a decomposer as it break down organic matter present on bread.
On-bread mold is regarded as a decomposer. Organisms known as decomposers consume decaying organic debris, such as dead plants or animals, to gain nutrients.
Mold receives its nourishment from the bread by secreting enzymes that aid in the breakdown of complex organic molecules into more easily absorbed and used forms.
As a decomposer, mold is essential to the decomposition of organic matter in ecosystems and the cycling of nutrients.
It contributes to the recycling of organic matter and the preservation of ecological balance by aiding in the breakdown of the bread and the release of its nutrients back into the environment.
Thus, the mold can be considered decomposer.
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biology help :)) tysm
True. The eggs and sperm has its own distinct DNA make up.
The Answer Is D. The Volume Increases. Its volume increases and speeds up more than the surface area. The larger the cell, the more demands the cell places on its DNA.
Other than using financial aid options offered to him what are some creative ways he can make ends meet
Working a side job at nights or on the weekends
What are the 5 steps of DNA replication???
Answer:
Explanation:DNA replication is a crucial biological process in which a cell copies its DNA, allowing genetic information to be passed from one generation to the next. Here are the five main steps of DNA replication:
Initiation:
Origin of Replication: Replication begins at specific locations in the DNA called origins of replication.
Unwinding of DNA: Enzymes called helicases unwind the double helix, creating two single-stranded DNA templates. Single-strand binding proteins (SSBs) stabilize the unwound strands and prevent them from reannealing.
Primer Binding:
Primase Activity: Primase, an RNA polymerase, synthesizes a short RNA primer complementary to the DNA template. This primer provides a starting point for DNA synthesis, as DNA polymerases can only add nucleotides to an existing strand.
Elongation:
Leading Strand Synthesis: DNA polymerase III (in prokaryotes) or DNA polymerase δ and ε (in eukaryotes) continuously synthesizes the leading strand in the 5' to 3' direction towards the replication fork.
Lagging Strand Synthesis: The lagging strand is synthesized discontinuously in short segments called Okazaki fragments. DNA polymerase synthesizes these fragments in the 5' to 3' direction away from the replication fork.
RNA Primer Removal: DNA polymerase I (in prokaryotes) or RNase H (in eukaryotes) removes the RNA primers from the Okazaki fragments.
Joining of Okazaki Fragments:
DNA Ligase Activity: DNA ligase seals the gaps between the Okazaki fragments, joining them to form a continuous strand. This process involves forming phosphodiester bonds between adjacent nucleotides.
Termination:
Replication Forks Meet: In prokaryotes, replication ends when the two replication forks meet. In eukaryotes, replication continues until all replication forks converge, and the replication machinery disassembles.
Telomere Replication: In eukaryotic cells, the ends of linear chromosomes (telomeres) are replicated by the enzyme telomerase, which adds repetitive nucleotide sequences to the ends, preventing chromosome shortening.
DNA replication involves the steps of initiation, unwinding, primer binding, elongation, and termination.
DNA replication is a complex process, consisting of the following five main steps:
Initiation: Origins of replication are specific DNA locations where the process begins. Different compounds assemble at these focuses to start replication.Unwinding: By breaking the hydrogen bonds that connect the two DNA strands, an enzyme called helicase creates a replication fork and unwinds the double helix structure.Primer Binding: To keep the strands apart, single-strand binding proteins (SSBs) bind to the separated ones. In addition, primase is responsible for the production of RNA primers, which are required for DNA polymerase to initiate replication.Elongation: The 3'-OH end of the RNA primers is where new DNA nucleotides are added by DNA Polymerase III. The production of new strands in the 5' to 3' direction is ensured by this enzyme.Termination: When DNA ligase processes and joins DNA fragments, forming phosphodiester bonds to close the gaps between Okazaki fragments on the lagging strand, DNA replication is complete.