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kondaur [170]
2 years ago
15

In eukaryotic cells, DNA is packaged with proteins into structures called chromosomes. What advantage do chromosomes provide the

cell?
A.
They allow all genes to be expressed at the same time.

B.
They allow random distribution of genetic material when a cell divides.

C.
They ensure equal division of genetic material when a cell divides.

D.
They eliminate the need for a nuclear membrane.
Biology
1 answer:
Vadim26 [7]2 years ago
4 0

Answer:

Option C, They allow random distribution of genetic material when a cell divides.

Explanation:

The chromatin are responsible for packaging of DNA molecule into smaller space with in a chromosome. It not only package it but also protect it from. Packaging allows for easier division of cells during mitosis and meiosis and hence prevent any kind of damage to the DNA.  

Chromosomes make recombination and random segregation of genetic material to form new cells.  Each new cell gets equal number of chromosomes

Hence, option C is correction

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How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?
adoni [48]

Answer:

The answer is B

Explanation:

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2 years ago
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Suppose a one-year old child is playing with a toy near an electrical out-let. He sticks part of the toy into the outlet. He get
Papessa [141]

Answer:

UCS: sticks part of the toy into the electrical outlet

UCR: frightened and crying

CS: toy

CR: frightened to toy

Explanation:

Classical conditioning is a form of learning whereby a conditioned stimulus becomes associated with an unrelated unconditioned stimulus, in order to produce a behavioral response known as a conditioned response.

<u>Unconditioned stimulus</u> (UCS) is an agent that leads to a response without training. In this example, the child won't know that he can have electrical shock playing with toys.

<u>Unconditioned response</u> (UCR) is an automatic response to a UCS that's why the child starts crying and frightened.

<u>Conditioned stimulus</u> (CS) is a former natural stimulus that comes to elicit a given response after pairing with a UCS. In this situation, CS is when mom gives the same toys to the baby that was the reason for electrical shock.

<u>Conditioned response</u> (CR) is a learned response to a CS because the baby shows fear when he saw the same toys. It is his learned behavior.

3 0
2 years ago
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A physician conducts a survey among 100 patients suffering from migraine headaches to assess the range of headache severity amon
geniusboy [140]
In order to interpret the results obtained from this kind of survey, we simply could not rely on the number alone.
So, the data analysis that he would likely to apply to interpret the results would be : Qualitative and inferential

hope this helps
7 0
2 years ago
Wolves are predators of deer. What is most likely to happen to the deer population if the wolf population increased?
otez555 [7]
Deer populations would drop as the wolves would hunt more
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2 years ago
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Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers, and the other has white, terminal flowers
Debora [2.8K]

Answer:

Explanation:

<em>The probability of producing plants with white axial flowers would be 1/16.</em>

From the illustration, All F1 individuals had red, axial flowers. It thus means that red and axial genes are dominant over white and terminal genes in the pea plant.

Let us assume that the allele for flower color is A (red) and a (white); and the allele for flower location is B (axial) and b (terminal).

Pure-breeding red, axial flower = AABB

Pure breeding white, terminal flower = aabb

AABB   x    aabb

F1 genotype = AaBb - all red and axial

At F2:

AaBb   x   AaBb

Progeny

<em>9 A_B_ red/axial</em>

<em>3 A_bb red/terminal</em>

<em>3 aaB_ white/axial</em>

<em>1 aabb - white/terminal</em>

Hence, the probability of producing plants with white axial flowers in the F2 generation is 1/16.

8 0
1 year ago
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