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faust18 [17]
2 years ago
5

Differentiation of a blood vessel into an artery or a vein is regulated by which of the following?

Biology
1 answer:
Nadusha1986 [10]2 years ago
8 0

Answer:

Notch signaling

Explanation:

Notch signalling operates in many cell type at different stages during development. The notch signalling regulates cell fate, cell proliferation, cell differentiation and cell death. The notch cascade contains notch as well as notch ligands. It also contains intracellular protein which transmits the notch signal to the nucleus of the cell. It is important for the regulation of embryonic development.

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What are the estimated allele frequencies in a population if the frequency of the dominant phenotype is 0.64 (Hint: handout to g
Nadya [2.5K]

Answer:

0.8 and 0.2

Explanation:

Hardy Weinberg law states that the allele frequency of the population remain stable from one generation to next generation if no natural selection, drift or mutation occurs in the population.

Let p and q be the dominant and recessive frequency of the population respectively.

The dominant phenotype means p² = 0.64

p = 0.8

and we known that p + q = 1, in hardy Weinberg equilibrium.

0.8 + q = 1.

q = 0.2

Thus, the dominant allele is 0.8 and recessive allele is 0.2.

6 0
3 years ago
If light-independent reaction can run without light, why does oxygen production stop?
madreJ [45]

Answer:

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Explanation:

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5 0
2 years ago
Which is a requirement for diffusion to take place?
lubasha [3.4K]

Answer:

Explanation: Diffusion is a process that allows particles to move from areas of high concentration to areas of lower concentration. The process requires that particles are moving. As long as particles are not at a temperature of 0K (absolute zero) they have kinetic energy (energy of movement)

3 0
3 years ago
Read 2 more answers
Most of the lymph returns to the venous circulation by way of the ______.
ohaa [14]
The correct answer is "thoracic duct". 

The thoracic duct (also called as the left lymphatic duct or the alimentary duct) is the structure wherein most of the lymph in the drained from the lymphatic vessels goes to this structure. In the thoracic duct, lymph flows up to the level of the brachiocephalic vein where lymph returns to the venous circulation.
8 0
3 years ago
Please help. This test is timed and this course is way too hard. I will mark Brainliest if you have the best answer! No random a
Licemer1 [7]

Answer:

C

Explanation:

Bulls are a more extreme version of a cow. A cow is like a mother who cares for her children while a bull is like a rowdy person who does weird and unpredictable things at times. That's why when people hear the word wild cow, they don't usually get frightened but when they hear the word wild bull, they kind of get afraid.

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2 years ago
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