If an individual has the genotype xxx, did non-disjunction occur in their mother or their father (or both) and at which division(s), meiosis i or meiosis ii? check all that apply:

Answers

Answer 1
The mother's genotype is XX and the father's XY. An individual that has the genotype XXX, if any non-disjunction happened, it occur in her mother because only from her mother, she could receive 2 Xs, while form her father, if a non-disjunction was to happen in this chromosomes, it would result in a XXY.
This non-disjunction happened during meiosis I, which is when the two copies of the same chromosome are taken each to a different cell. During this process, the separation did not happen on this two chromosomes being both Xs from the mother taken together to the new haploid cell. The non-disjunction on meiosis II only implies that the two chromatids from a chromosome did not separate and does not result in copies of the same chromosome.

Related Questions

Why are people (agents) needed "on the ground" in order for the stuxnert virus to work?

Answers

Final answer:

The Stuxnet virus requires physical access to target systems for it to work, which is why people are needed "on the ground".

Explanation:

The Stuxnet virus is a complex computer worm that was designed to specifically target and disrupt industrial systems, particularly those used in Iran's nuclear program. The reason people, or agents, are needed "on the ground" for the Stuxnet virus to work is because it requires physical access to the target systems in order to be introduced. Stuxnet was primarily spread through the use of infected USB drives, which means someone had to physically insert the infected drive into the target system for the virus to be unleashed.

Without this physical access, the Stuxnet virus cannot be deployed and will not be able to carry out its intended purpose of sabotaging the targeted industrial systems.

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Final answer:

The Stuxnet virus requires physical access to the target system in order to propagate and spread. Agents 'on the ground' are needed to introduce the virus into the targeted environment, by deliberately infecting USB drives or other removable media that are later connected to the targeted computers. This physical element is crucial because it differentiates the Stuxnet virus from other malware that spreads solely through online networks or the Internet.

Explanation:

The Stuxnet virus is a complex computer worm that was specifically designed to target and disrupt industrial systems, including those used in nuclear facilities. It requires physical access to the target system in order to propagate and spread. Thus, people (agents) are needed 'on the ground' to introduce the virus into the targeted environment.

These agents might be individuals with access to the targeted facility, such as insiders or spies. They can deliberately introduce the virus into the system by infecting USB drives or other removable media that are later connected to the targeted computers. Once the virus enters the system, it can then spread within the network and carry out its destructive actions.

This physical element is crucial for the Stuxnet virus to work because it differentiates it from other malware that spreads solely through online networks or the Internet. The 'on the ground' component allows the virus to bypass potential barriers and security measures that might otherwise prevent a cyberattack from taking place.

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The _____ contains the pineal gland which secretes the hormone melatonin.thalamusepithalamushypothalamussubthalamus

Answers

The EPITHALAMUS contains the pineal gland which secretes the hormone melatonin.
The pineal gland is located in the epithalamus, which is near the center of the brain. The pineal gland produces melatonin hormone which is a serotonin derived hormone that modulates sleep pattern.

Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called A) infrared B) microwaves C) ultraviolet D) x-rays

Answers

A) infrared This is because, the color of visible light with the longest wavelength and the lowet amount of energy is red. Infrared is the invisible area of the spectrum with wavelengths just longer than red light. Microwaves, ultraviolet, and xrays are all too energetic to be used in remote controls.

Answer:

a

Explanation:

___ enter the lymph and need transport carriers to circulate in the bloodstream.

Answers

long chain fatty acids

Because of retinal disparity, we can enjoy:

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Retinal disparity describes the way that a person's left eye and right eye view slightly different images upon "seeing" an object. However, when both eyes are open, these slightly different images are blended into one view, allowing us to perceive and enjoy depth and dimensionality of the things that we see around us.  

Does cow liver have prokaryotic cells

Answers

No, but onion root does of that helped at all

"the major promise of biometrics is to replace reusable passwords".
a. True
b. False

Answers

(a) true 
hope this helps

The major promise of biometrics is to replace reusable passwords - True

Biometric authentication is seen as a secure alternative to the traditional knowledge-based methods such as usernames and passwords. Biometrics relies on unique physiological traits like fingerprints, face recognition, voice recognition, and eye scans for verifying identity. Such traits are believed to be less susceptible to theft and duplication than passwords. In practical scenarios, devices like smartphones and laptops are already adopting biometrics in addition to or in place of passwords.

Biometrics offer a higher convenience, and for some users, an increased sense of security. However, it is important to note that if the biometric data is transmitted over a network, it could be just as vulnerable as passwords to certain types of attacks, and biometrics are not necessarily perfect and can sometimes be misled or have their data compromised.



WILL GIVE A BRAINLEST

The major factor keeping forests from growing in grassland areas is _____.


grazing


grass fires


rainfall


soil structure

Answers

I was going to go with Rainfall but then i realize that the soil structure is what is growing the grass so I think Soil Structure is the answer. With enough nutrients in the soil it will be able to expand (aka. grow). 
I believe it is grass fires because, well... think of it... When grass catches on fire doesn't that stop forest from growing. And then once they catch on fire it can catch other things on fire like the trees in the forest. Hope this helps! =)

Differentiate between the lithosphere and Asthenosphere.

Answers


Difference between Lithosphere and Asthenosphere
• The difference between lithosphere and Asthenosphere pertain to their compositions.
• While lithosphere is hard and rigid, Asthenosphere is a layer made up of molten rocks.
• Lithosphere stretches from the top of the earth’s crust down to first 100 kilometers while Asthenosphere lies beneath lithosphere
• Rocks are under severe pressure in Asthenosphere, whereas they face much less pressure in lithosphere.
• The mineral composition of lithosphere is varied as it contains more than 80 minerals whereas Asthenosphere is mainly comprised of silicates of iron and magnesium.
• The depth of the lithosphere is about 100 kilometers, whereas the depth of Asthenosphere is 400-700 kilometers.

Final answer:

The Lithosphere consists of the Earth's crust and the uppermost part of the mantle. It contains the tectonic plates. The Asthenosphere sits beneath the lithosphere and is a semi-fluid layer where heat convection occurs, driving tectonic movement.

Explanation:

The Lithosphere and the Asthenosphere are two different layers of the Earth. The Lithosphere consists of the Earth's crust and the uppermost part of the mantle. It is broken up into tectonic plates; these plates are moving apart in some areas, like the Atlantic Ocean, and being forced together in others, such as off the western coast of South America. The Asthenosphere, on the other hand, is located directly below the lithosphere and is part of the upper mantle. It is regarded as the 'hot, weak layer' because of its physical state, which is plastic or semi-fluid. It is here that convection occurs, taking heat from the interior and transporting it to the upper mantle. This convection is the power source for the movement of the tectonic plates.

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During dna replication in a bacterium a g is mistakenly inserted into the newly-synthesized dna strand opposite a t in the template dna strand. if this mistake is not repaired before the next round of dna replication, what mutation will eventually result?

Answers

The type of mutation that will eventually occur is A TO G BASE SUBSTITUTION. 
In this type of mutation,  what will happen is that, in all the points where adenine base is suppose to be inserted, it is the guanine base that will be inserted there. This is an example of base substitution error in DNA replication.
Answer:

The mutation will be one base substitution mutation.

Explanation:In the newly forming strand only one G is inserted mistakenly.As we know DNA replication is a semi conservative model.In which two strands of double stranded DNA will be two separate templates for the two newly strands of DNA.As one of the strand has one wrong nucleotide in its sequence. As if it is not repaired the substitution will become the part of newly formed strand formed from this mutated strand.And this mutation will pass onto next generation with half correct DNA and half wrong DNA.

Select all the concepts that biology can help you understand?

Patterns of inheritance in your family
Medicine
Personal health
Physics
Astronomy
Living things

Answers

Patterns of inheritance in your family. Medicine Personal health ... in your family Medicine Personal health Physics Astronomy Living things.

Answer:

Biology is the branch of science that helps us to understand about the living system and helps in the detailed study of the body of an organism.

The living things, medicine, personal health, patterns of inheritance in the family are some of the factors that can be answered by the help of biology.

The terms such as astronomy and physics cannot be answered by the help of biology.

The nurse is asked to obtain a urine sample from a school-age child for a urine culture to detect bacteriuria. which intervention does the nurse implement?

Answers

Bacteriuria or Asymptomatic Bacteriuria (ABU) is not a common condition or children. If the nurse is asked to obtain a urine sample from a school-age child for a urine culture to detect bateriuria, the nurse should implement the following interventions:
1. The nurse should obtain an early morning sample of urine as it gives the accurate results.
The child should not be allowed to drink water before giving the sample as water dilutes the bacterial count of the urine and might give false report.
3. There are chances of contamination of the sample and the urine might change its characteristics in a given period of time. Thus, the urine sample should be brought immediately to the laboratory for urine culture.

Sort the descriptions into the appropriate bins, which illustrate the types of biaxial movement.

Answers

I found the exercise on the internet. Attached is the descriptions and the bins.

Biaxial movement in a condylar joint:
-Example of knuckle joints
-Condylar type of joint

Biaxial movement in a saddle joint:
-Example of carpometacaral joint of the thumb
-Saddle type of joint
-Concave and convex surfaces displayed

Biaxial movement in both types of joints:
-Flexion permitted
-Extension permitted
Final answer:

Biaxial Movement in Biology - Explanation of biaxial movement in biology and examples of synovial joints that exhibit this type of movement.

Explanation:Biaxial Movement in Biology

In biology, biaxial movement refers to the ability of certain joints to move in two different planes. The synovial joints, such as the condyloid joint in the fingers and the saddle joint in the thumb, are examples of joints that exhibit biaxial movement.

For example, the condyloid joint allows for flexion and extension, as well as abduction and adduction. This means it can move forward and backward as well as side to side. Similarly, the saddle joint in the thumb allows for flexion and extension, as well as opposition and repositioning. This allows for a wide range of movement and dexterity in the hand.

Overall, biaxial movement in biology refers to the movement of joints in two different planes, enabling greater flexibility and range of motion.

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What are the main differences between eukaryotes, prokaryotes, and viruses?

Answers

 Prokaryotic cells are a group of organisms whose cells don't have a cell, nucleus, or any other membrane bound organelles. A virus is a small infectious agent that can replicate only inside the living cells .

Give an example of how cells structure relates to its functions in the body

Answers

Structure dictates function. ... Ribosomes provide another good example of structure determining function. These small cellular components are made of protein and ribosomal RNA (rRNA). Their main function is to translate messenger RNA, or mRNA, into strings of amino acids called proteins

Answer:

The structure of the cellular components in a cell determines the function of component.

Take the case of an organelle which produces energy in a eukaryotic cell called mitochondria. Mitochondria are structured in a way that it can synthesize a large amount of ATP in a small enclosed area.  

The structure of mitochondria contains outer membrane, inner membrane and the matrix. The membranes are structured that they can hold and accumulate the protons and allow the flow of proton. Similarly, the inner membrane gets folded to increases the output of ATP synthesis by forming infoldings called cristae which embodies ATP synthase.

This shows how the structure and functions are related in a cell.

igneous rock can be changed into which type of rock through the application of heat and pressure?
A. Foliated igneous rock
B. Non-foliated igneous rocks
C. Clastic sedimentary rock
D. Metamorphic rock

Answers

Answer:

D. Metamorphic rock

Explanation:

i did test and got it 5/5

Igneous rock can be changed into metamorphic rocks by the application of heat and pressure. This changes the shape and size of rocks. Thus, the correct option is D.

What is Metamorphic rock?

Metamorphic rocks formation occurs when igneous rocks are subjected to very high temperature, pressure, and hot mineral-rich fluids. This leads to change in the shape and size of the rocks.

Metamorphism is a process which changes the pre-existing rocks into new forms because of the increase in temperature, pressure, and chemically active fluids. Metamorphism may affect different types of rocks like igneous, sedimentary, or other metamorphic rocks.

During this process, new minerals form, with different sizes, shapes, and orientations than those of the original ones. The chemical composition of the original rocks may also change, as elements are carried away and some are added by the fluids flowing to the rocks.

Therefore, the correct option is D.

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Which factors stimulate cell division when conditions are favorable?

Answers

Growth factors are the factor that stimulates cell division when conditions are favorable. It is added to cells to stimulate transcription of early response genes, such as transcription factor c-Fos; altogether these factors stimulate transcription of delayed-response genes. 
The cell number it depends on the amount of the cell division and cell death. 

On day 2, how did the size of the mixed population compared to either one of the single species populations? it was the same size it was larger it was smaller

Answers

Why the speciecs T---------T

I REALLY NEED HELP PLEASE. I WILL GIVE BRAINLIEST IF YOUR CORRECT.
Cellular respiration is a process involving the breakdown of glucose molecules in order to generate energy for cellular activities. Given the general reaction below, which of the following best describes the products labeled x and y?

C6H12O6 + O2 → _x___ + __y___ + energy

a. The products are CO (carbon monoxide) and H2O2 (hydrogen peroxide), which then decompose into carbon dioxide (CO2) and water (H2O).

b. The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration.

c. The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis.

d. The products are O2 (oxygen) and H2O (water), which are then used for growth and to keep the organism hydrated.

Answers

B.The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration.

What trophic leek do herbivores occupy in a food chain?

A- primary consumer

B- producer

C- secondary consumer

D-decomposer

Answers

The answer to this is A.
A - primary consumer
Primary consumers are those that feed on producers. Producers are mainly plants, those organisms that get what nutrients are in the soil and transform them into energy through sunlight energy - a process called photosynthesis. Primary producers are therefore herbivores - they eat plants.

A trait is likely to be heritable if _____ are more similar in that trait than _____.
a. dizygotic twins; monozygotic twins
b. monozygotic twins; dizygotic twins
c. ordinary siblings; dizygotic twins
d. dizygotic twins; ordinary siblings

Answers

a. Dizygotic twins originate from two different eggs, whereas monozygotic twins come the same egg. Monozygotic twins are"identical" because they come from the same egg, and so similar traits between them do not indicate any hereditary tendencies. Dizygotic twins come from two different eggs. Because of this, similarity between them is more likely to be due to a hereditary tendency, because both eggs had to individually inherit the trait.

A researcher who studies neurodegenerative diseases has found that dying neurons contains a high concentration of miss-folded proteins in their cytoplasm. further experiments demonstrated that the lysosomes are working properly in these neurons. according to this information, which cellular structure is responsible for this disease?

Answers

The cellular structure responsible for this disease is THE ENDOPLASMIC RETICULUM. 
In eurkaryotic cells, endoplasmic reticulum is very essential for the folding and trafficking of proteins. Increased protein synthesis and environmental insults usually leads to the misfolding of proteins by endoplasmic reticulum. The accumulation of misfolded proteins inside the cell is called endoplasmic reticulum stress.

Approximately ________ percent of lung cancer deaths are caused by smoking

Answers

Approximately eighty seven percent of lung cancer deaths are caused by smoking.

What is the organelle that contains DNA?

Correct answer gets brainliest!

Answers

OK so the organelle that contains DNA will be Chloroplasts
The organelle that contains DNA is chloroplast

Hope that helps

Abnormal gametes associated with a heterozygous pericentric inversion result from

Answers

An inversion refers to a type of mutation where chromosomal rearrangement takes place in a single chromosome. It can be of two types: Paracentric Inversion and Pericentric Inversion.
Pericentric inversion occurs in the chromosomes that leads to abnormal gametes where some genes are missing.
Abnormal gametes associated with a heterozygous pericentric inversion result from crossing over which is characterized by two-break events within the chromosome (short arm and the long arm).

Some american soldiers serving in iraq have become infected with a skin disease caused by a protist called leishmania, which is transmitted by sand flies. the leishmania organism bears flagella with a unique crystalline rod structure. one of its life stages is squiggly and worm-like in appearance, much like its relative in the same group, trypanosoma. leishmania belongs to the group _______

Answers

Leshmaniais a genus of trypanosomes that are dependable for the ailment leishmaniasis.They are unfold via sandflies of the genus Phlebotomus within the historic World, and of the genus Lutzomyia in the New World. At least 93 sandfly species are demonstrated or possible vectors worldwide. Their foremost hosts are vertebrates; Leishmania customarily infects hyraxes, canids, rodents, and humans.
Domain:

Eukaryota

(unranked):

Excavata

Phylum:

Euglenozoa

Class:

Kinetoplastida

Order:

Trypanosomatida

Genus:

Leishmania
Borovsky 1898 (Ross1903)

hope it helped you


What structural similarities do you observe between the lymph node and the spleen?

Answers

Final answer:

The lymph node and the spleen have several structural similarities. Both organs are part of the lymphatic system and are involved in the immune response. They both contain two types of tissue: red pulp and white pulp.

Explanation:

The lymph node and the spleen have several structural similarities. Both organs are part of the lymphatic system and are involved in the immune response. They both contain two types of tissue: red pulp and white pulp. The red pulp stores blood and removes damaged red blood cells, while the white pulp is rich in lymphocytes that remove antigen-coated bacteria from the blood. However, there are some differences between the two organs. The lymph node filters lymph, while the spleen filters blood.

According to maslow, all humans acquire a similar set of motives through genetic endowment and social interaction.
a. True
b. False

Answers

The answer to the question is
A. True

Our bodies are "time capsules" that tell of critical moments in the history of our planet and of the distant past in ancient oceans, streams and forests. explain.

Answers

Nsndjdjdjddjdjdjdjfnfnfnfnf

One human impact on the phosphorus cycle occurs through:

a. burning of fossil fuels.

b. the erosion of agricultural lands.

c. the greenhouse effect.

d. global warming.

e. depletion of the ozone layer.

Answers

d is the awnser i think

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