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nika2105 [10]
3 years ago
13

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

Biology
1 answer:
tiny-mole [99]3 years ago
5 0

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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How does actin and myosin work together to help you lift an object?
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Answer:

Muscle contraction thus results from an interaction between the actin and myosin filaments that generates their movement relative to one another.

6 0
2 years ago
When calcium ions are released into muscle fibers, what happens along the actin filament? Multiple Choice The position of the tr
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Answer:

The correct answer will be options

1. The position of the tropomyosin threads shift

2. Exposing myosin binding sites

3. Allowing the myosin head to attach to the actin filament

Explanation:

Calcium plays an important role in the contraction of muscles especially in the formation of the cross-bridge between myosin and actin filaments.

In the presence of calcium, myosin head binds the actin filament as calcium binds to the troponin which changes the configuration of the troponin which releases the tropomyosin from the myosin-binding site on actin.

Once the myosin binding site is freed, myosin binds the site and causes muscle contraction due to ATP hydrolysis.

Thus, the selected options are the correct answer.

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3 years ago
For diffusion to occur, which condition must be met
yawa3891 [41]

A concentration gradient must exist. hope this helps

3 0
3 years ago
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