Answer:
c.Find uses for more plentiful minerals.
Explanation:
In a population of humans, the frequency of straight hair is 34 percent. If straight hair is the recessive phenotype, what is the frequency of the homozygous recessive genotype? 17 percent 34 percent 66 percent 68 percent
34 percent fam I saw it on quizlet fyi thats where I get my answers and help on my work
Answer:
Option B, 34 percent
Explanation:
Given,
Frequency of straight hair [tex]= 34[/tex]%
Let the allele for straight hair be represented by "s" and the allele for any other hair type be represented by "S"
Here, S is dominant over s.
Thus, as per the Hardy Weinberg's equation
the frequency of a homozygous recessive genotype is represented by "[tex]q^{2}[/tex]" while the frequency of homozygous dominant genotype is represented by [tex]p^{2}[/tex]
[tex]q^{2} =[/tex] [tex]34[/tex]%
Since straight hair is a recessive trait. thus this phenotype is only expressed when the genotype of recessive allele is homozygous.
Therefore , frequency of the homozygous recessive genotype is equal to the frequency of straight hair in normal human population i.e [tex]34[/tex]%
hence, option B is correct
How did organic compounds get their name? How is the word related to it’s meaning
The notion that our brain organization and anatomy can change is called __________. A. recovery B. experience C. neurogenesis D. plasticity
The right answer is D. plasticity
Brain plasticity describes the ability of the brain to reshape its connections according to the environment and the experiences of the individual.
From the fetal life, connections between neurons are put in place. Later, after birth, some connections are preserved and others disappear.
The cerebral plasticity is at work during the apprenticeships which require the reworking of the nervous circuits. This is when some connections are reinforced between neurons (synapses). Indeed, the brain is not immutable. On the contrary, it evolves throughout life.
Cerebral plasticity is also possible thanks to undifferentiated cells that can replace accidentally destroyed neurons. For example, in the rat, if vibrisses (whiskers playing a sensory role) are removed, the organization of neurons in the brain is changed. The disappearance of a vibrissa leads to the reorganization of the somatosensory cortex.
Which is the most common cause of delayed healing of a skin wound caused by a traffic accident?
Severe allergic reactions cause a wide-spread release of histamine and inflammation. the connective tissue cells involved are the __________.
The connective tissue cells that are involved with allergic reactions of which causes release of histamine and to promote the cause of inflammation is the mast cells. The mast cells are the type of cell in the connective tissue that contains basophil granules and they are responsible of promoting allergic reactions.
one structure helps the plant cell keep its shape no matter how much water is in the vacuole
Which of these is the thinnest? A.plate B.lithosphere C.oceanic crust D.continental crust
Answer:
The correct answer is option C, that is, oceanic crust.
Explanation:
Of the mentioned options oceanic crust is the thinnest. The topmost layer of the oceanic part of a tectonic plate is known as the oceanic crust. In comparison, continental crust is less dense than oceanic crust. However, continental crust is thicker in comparison to the oceanic crust that exhibits an average thickness of about 7 to 10 kilometers. Approximately 40 percent of the surface of the Earth is occupied by continental crust.
Why is measuring blood glucose levels an indicator of someone's lactase activity
Measuring blood glucose levels, while not the most direct method, can give an indication of lactase activity as the digestion of lactose by lactase produces glucose. This, combined with the cell's response to glucose levels, can provide a readout on lactase activity. However, the standard way of testing lactase activity is through a hydrogen breath test.
Explanation:Measuring blood glucose levels can be used as an indicator of someone's lactase activity because glucose is a product of lactose digestion. When lactose, a sugar found in milk, is broken down by the enzyme lactase, it gives rise to glucose and galactose. Therefore, a higher than normal glucose level might suggest increased lactose digestion and by inference, higher lactase activity.
The ability to utilize lactose instead of glucose as a fuel source is also an indicator of lactase activity. In the absence of glucose, the cell triggers a cascade that activates a different set of genes, the lac operon, which encodes lactase among other proteins. Therefore, the cell's response to a drop in glucose levels can also indirectly provide a readout on lactase activity.
However, measuring blood glucose levels is not the most direct or accurate way of assessing lactase activity. Traditional tests for lactase activity include the hydrogen breath test, in which a patient drinks a lactose-containing liquid and the amount of hydrogen in the breath is measured; the lactose-tolerant are able to digest lactose and hence produce less hydrogen gas when measured in exhaled air.
Learn more about Lactase Activity here:https://brainly.com/question/30629762
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Select properties for the most abundant isotope of a particular element are given. which of these properties are the same for the second most abundant isotope of the element?
Mass number is the same for the second most abundant isotope of a particular element. Hence the correct option is a.
The mass number, representing the total number of protons and neutrons in an atomic nucleus, remains constant for all isotopes of a specific element. Therefore, for the second most abundant isotope of a particular element, the mass number remains the same as that of the most abundant isotope. This is because isotopes of an element share the same atomic number (number of protons) but differ in the number of neutrons, leading to variations in mass numbers.
While atomic number, neutron count, and electron configuration can differ between isotopes, the mass number remains a consistent property across isotopes of the same element. This stability in mass number reflects the cumulative mass of protons and neutrons, providing a crucial characteristic for identifying and distinguishing isotopes within the periodic table. Hence the correct option is a.
Complete question:
Which of the following properties are the same for the second most abundant isotope of a particular element?
A. Mass number
B. Atomic number
C. Neutron count
D. Electron configuration
Why do phospholipids form a bilayer in water?
Answer:
The hydrophobic tails aggregate to form a bi layer.
Explanation:
Phospholipids are major constituents of the plasma membrane. These are triglycerides having lipid part and phosphate part. The phosphate portion is the water-loving/hydrophilic and the glycerol tail or lipid part is water hating/hydrophobic. Hence, it is an amphipathic molecule. The hydrophobic tail aggregate with each other to form a lipid bilayer in the water. Therefore, the lipid tails prevent water molecules to enter the bilayer.
Do cells without chloroplasts depend on sunlight for their food?
The health determinant which we have least control over is
Zero on a pH scale is very _____, and 14 on a pH scale is very _____.
A. acidic; basic
B. basic; acidic
Answer:
A
Explanation:
Zero on a pH scale is very A. acidic, and 14 on a pH scale is very basic. The lower the number on the scale, the more acidic it is.
Emma extracted some fresh orange juice and mixed it with some water. The result was a cloudy yellow color. When poured through a filter, tiny bits of orange were filtered out. What type of mixture did Emma prepare?
Under drought conditions, predict a likely change in the water cycle. A) water does not evaporate into air B) less groundwater accumulates C) increased run-off D) increased precipitation
Is a mechanism that when used appropriately returns the body to?
Which of the following is the correct formula for the compound disulfur pentoxide?
After Darwin proposed his ideas about natural selection as a mechanism for evolution, it took time before evolution was generally considered a theory. Why do we now refer to it as a theory
Answer:
Questions still remain concerning its validity, so it must be called a theory.
Explanation:
A client’s partner uses the call bell to tell the nurse that the client’s membranes have ruptured and “something is hanging out on the bed!” the nurse visualizes an overt prolapsed umbilical cord. what is the priority nursing action?
Which structure would be expected to be constructed by endoplasmic reticulum?
The endoplasmic reticulum is the one responsible for constructing some proteins, it has two portions, namely the rough ER and the smooth ER, the structure of which made up the rough ER are ribosomes while the smooth ER is free of ribosomes.
Divorce rates increase with each remarriage
a. True
b. False
Which of the following groups would an animal with an exoskeleton, segmented body, and jointed appendages belong to
A) mollusks
B) segmented worms
C) cnidarians
D) arthropods
What information can be inferred if the estimated heritability of a trait is approximately 0.50?
Answer:
Variability in a trait is due to a combination of environmental and genetic factors, where at least 50% can be attributed to genetic differences.
Explanation:
The heritability of a trait is the influence of both, environment and genes, on the phenotype variation among individuals. The proportion between phenotypic variation and variation in genetic values is defined as heritability.
There are 2 types of heritability: Broad sense (genetic variation due to dominance and epistasis) and Narrow sense (genetic variation due to additive genetic values).
Heritability estimation is based on observations and empirical data analysis, which used mathematical models like Breeder's equation and statistical analysis. An 0,50 value indicates that variability in a trait is due to a combination of environmental and genetic factors, and genetic differences among individuals account for 50% of the variability in the trait, so it can be inferred that the trait is very complex, like a multifactorial condition, for which the environment can play an important role.
IMMEDIATELY ANSWER! 15 POINTS!
In which part of the cell is the majority of the energy released from the breakdown of glucose?
Answer:
Explanation:
B.
Unlike in society, a scientific blank is simply a description of what we see
Answer:
Law
Explanation:
A scientific law refers to a phenomenon that we can observe, that is, a scientific law is simply a description of what we see. Scientific laws are not intended to explain observed phenomena, but merely to show them. What explains the occurrence of these phenomena are the scientific theories.
A client who lives with many psychosocial and physiologic stressors is experiencing the exhaustion stage of stress. the client is likely to develop what consequence of this stage
All ecosystems are affected by wildfires equally.
I belaive
the answer is true
The statement is true. All the ecosystems are affected by wildfires equally.
Explanation:Wildfire can be described as the uncontrolled fire when all the fauna and flora of the ecosystem is burned by the fire.Every ecosystem is consist of the living organism either in form of plants or animals. Plants and animals both are sensitive to fire and can be destroyed completely.For example a rain forest if gets fire, all the plants and trees will be burnt and the animals and bird inhibiting that forest will also be dead. As well as fire in desert also cause destruction.Because fire destroy the vegetative areas of ecosystems which are the food for other organisms in that ecosystem.The theory of evolution by natural selection is a good example of how science proceeds because
In which stage do the chromatids get separated and move toward opposite ends of the cell? A)P B)Q C)R D)S
Anaphase is the stage during which chromatids separate and move to opposite poles of the cell (option A).
Explanation:The stage in which chromatids get separated and move toward opposite ends of the cell is known as Anaphase. This stage is the third phase of mitosis. During anaphase, the sister chromatids are pulled apart by the shortening of the spindle fibers, which is a process analogously described as reeling in a fish by shortening the fishing line.
Each sister chromatid, now considered an individual chromosome, moves to one pole of the cell, ensuring that each pole has a complete set of chromosomes by the end of anaphase.
Hence, the answer is option A.
Complete question is as follows :
In which stage do the chromatids get separated and move toward opposite ends of the cell?
A)Anaphase B)Metaphase C)Telophase D)Prophase
Classify the objects as being magnetic or nonmagnetic. wooden tablesteel tankglass marblesiron ballnickel hingesilver medal
Answer:
he is right
Explanation: