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sleet_krkn [62]
3 years ago
12

Why do you think arteries, veins and nerves always travel together? provide an example that illustrates your reasoning?

Biology
1 answer:
MA_775_DIABLO [31]3 years ago
3 0
Not all veins and arteries travel together but most of them do. Reason being that veins don't have good means of pumping up to the heart and this is facilitated by arterial pulsations.
Muscular contractions help venous to pump blood because when muscle contract venous sinuses are caused to contract and blood be pumped up. Where there is no gravity muscular contraction is important because of the veins of the lower extremity.
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Keith_Richards [23]
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8 0
3 years ago
Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the
Varvara68 [4.7K]

Answer:

.45 from mom, .05 from dad

Explanation:

Given that:

the mother's genotype is AZ/az

i.e AZ = 50%

az = 50%     (parental)

But  we  were also told that the recombination rate is 10% which will like wise affect the mother's genotype

So 100% -10% = 90 % of the mother's genotype

We have a new genotype

AZ = 45%

az = 45% (parental)

Therefore the probability of az gamete from the mother = \frac{45}{100}

= 0.45

Similarly; the genotype of the father is:  Az/aZ

This is an heterozygous father who is diploid hence, there is a remarkable presence of two copies of each autosomal chromosome.

Az is the allele of the genes in one chromosomes and aZ is the allele of the genes in the other.

The gametes of this self cross are: Aa, AZ, az, zZ

Therefore; the recombinants are:

AZ

az

Since there are 10% recombinant; then

AZ = 5%

az = 5%

Therefore the probability of az gamete from the father = \frac{5}{100}

= .05

4 0
4 years ago
Which of the following is NOT a function of the cytoskeleton
Lostsunrise [7]

<u>Removing waste from cel</u>l is NOT a function of the cytoskeleton

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<u>Explanation:</u>

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It also helps in transporting the communication signals from one cell to another. The cytoskeleton is made up of micro tubules, micro filaments and intermediate filaments. It also helps to move the nutrients within the cells. But it doesn’t help the removal of waste from the cell.

7 0
4 years ago
What is the function of cytosol in a cell
Sophie [7]

It is the fluid that suspends all the organells, and protects them from damage. It's also known (I think) as cytoplasm

4 0
4 years ago
Read 2 more answers
What is this? Please answer with an explanation
Anastaziya [24]
The answer should be RNA but i think DNA would work too
6 0
3 years ago
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