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2 years ago

7. Why is approximately 50% of any individual's DNA inherited from that individual's father?

Biology

1 answer:

Strike441 [17]2 years ago

4 0

Answer:

B. It was passed to the individual by a gamete from the father.

Explanation:

DNA is transferred to the next generation via gametes, which are produced during meiosis. During meiosis, half of the genetic material is transferred from parent cell to their gametes. Therefore, among the given options, only B is correct.

Option A is not correct because it talks about somatic cells; whereas, in somatic cells, genetic material is not transferred half rather duplicate first and then a complete duplicated set of genetic material is transferred.

Option C is also not correct because only one gamete (sperm) fertilizes the egg. Hence, not half of his cells descend from father gamete. Similarly, option D is also incorrect because it is not possible to descend half of the nuclei from the father to the offspring.

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The line tic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s is

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Answer: 25 joules

Explanation:

Recall that kinetic energy is the energy possessed by a moving object.

So, kinetic energy = 1/2 X Mass X Velocity^2

Mass = 0.5kg

Velocity = 10m/s^2

= 1/2 x 0.5kg x 10^2

= 0.5 x 0.5 x 100

= 25 Joules

Thus, the kinetic energy of the moving ball is 25 joules

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3 years ago

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Define a cardiovascular disease.

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Cardiovascular Diseases refers to a group of illnesses, disorders and in some cases serious abnormalities that affect the heart and blood vessels.

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Identify the model that best represents the plasma membrane of a hypothetical cell that exists in a nonaqueous environment and w

Klio2033 [76]

Answer:

The models are missing in the question. The models along with the question is provided in the attachment below.

The answer is : Model A represents the Plasma membrane.

Explanation:

According to the question, model A represents the plasma membrane. The reasons are :

(a). In the model A, the bilayers consists of two leaflets of the amphipathic lipid molecules. Here the polar head groups is in contact with the intra cellular or the extra cellular non aqueous phase, where the non polar tails are facing each other constituting the hydrophobic interior of the membrane.

(b). Lipid are not rigid as well as static structure. In the lipid bilayer, the lipid molecule are able to rotate around their axis freely and diffuse laterally with each leaflet.

(c). The plasma membrane acts as the selective plasma membrane.

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2 years ago

The longest part of the cell cycle where the cell continues normal functions, grows, and prepares to divide

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Interphase, the first part of the cell cycle

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2 years ago

The protein coat that surrounds the genetic material of the T2 phage is termed the:______

tiny-mole [99]

Answer:

Th correct answer is A. Capsid

Explanation:

T-2 phage is a bacteriophage which is virulent to E.coli which means T2 phage infects E.coli. The genetic material of T2 phage is linear DNA which is double-stranded. The genetic material of T2 phage is enclosed in a protein coat which is called capsid.

This capsid protects the genetic material of bacteriophage by any enzymatic digestion, helps the virus to attach the host cell and helps the virion to penetrate the cell membrane of the host cell and inject its genetic material in the host cell. Therefore capsid is the correct answer.

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2 years ago