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LUCKY_DIMON [66]
3 years ago
11

I am so lost and im bad at biology and this is my final grade to proceed to the 10th grade help

Biology
1 answer:
aliya0001 [1]3 years ago
8 0

Answer:

Explanation:

The correct answer is B

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The gene Src normally is activated by extracellular signals called growth factors. When the growth factors are present, Src inst
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Answer:

B. Oncogene

Explanation:

A gene that makes the body cells to divide in an uncontrolled manner is called an oncogene. An oncogene is responsible for the development of tumors due to disturbed regulation of cell division. The gene src makes the cells to enter the process of cell division in response to the growth factors.

However, the mutant src gene does not require the presence of growth factors and signals the cells to enter the process of cell division even in the absence of the growth factors. Since the mutant src gene causes uncontrolled cell division, it represents an oncogene.

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Which of the following is an example of polygenic inheritance? a. White and purple flower color in peas b. The ABO blood groups
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Answer: Hi.... I hope it helps!!

Skin Pigmentation in humans

Explanation: Polygenic inheritance- It is simply a single characteristic which is controlled by more than two genes. Human skin's color is determined by the amount of dark pigment it has which is melanin . Minimum four genes are involved in the melanin production.

It is a case of continuous variation as the combination of melanin producing allele are responsible for degree of pigmentation

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2 years ago
Salivary amylase begins the process of carbohydrate digestion in the mouth. The activity of salivary amylase is halted in the st
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The acidic environment in the stomach stops the action of the amylase enzyme.

The stomach will secrete digestive juice that contain hydrochloric acid and digestive enzyme such as pepsin to digest protein.

The HCL create an acidic environment that will deform the ionic and hydrogen bond of the amylase which cause the enzyme to be denatured.
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Which of the following is carried out in the Golgi apparatus of the cell?
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 It modifies, packages,and sorts proteins that will be secreted into the cell.  So synthesis of proteins.
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The job of the cell membrane is to ___________________ what enters and exits the cell.
vlabodo [156]

Answer:

The cell membrane is just like the other organelles of cells in that it serves the cell by having its own specialized jobs. One of its jobs is to control what enters and exits the cell and thereby to protect the cell.

Explanation:

Hope this helped!

-BB

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