What must happen before miosis can begin?

Biology

1 answer:

Olenka [21]3 years ago

3 0

Answer:

Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied. ... DNA replication occurs in the same fashion as it does during mitosis. After replication, the homologues are doubled, and each chromosome now has a homologous pair

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When a mitochondrial chaperone helps a mitochondrial matrix protein into the matrix by biased diffusion, the chaperone is said t

Elis [28]

Answer:

c. Brownian ratchet

Explanation:

Mitochondria are cell organelles. They are known as the power house of the cells. The energy needed to power the cell is generated by the mitochondria. They functions like a digestive system.

The mitochondria chaperone are proteins that helps the proteins along pathways for their folding. They shield the proteins from other proteins and protect them from binding the folding process. The chaperone are mainly concern with the folding of protein.

The chaperone acts as a Brownian ratchet as the mitochondrial chaperone guides the matrix protein into matrix by the biased diffusion process.

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3 years ago

Which order of diagrams would show primary succession in an area that had never before been occupied by living organisms?

shtirl [24]

I believe the question is according to the attached image.
The order of the diagram that would show primary succession in an area that had never before been occupied by living organisms is;
C,A, B, D.
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3 years ago

In a series of 250 base pairs there are 28 guanine. How many adenines are there?

arsen [322]

Answer:

278

Explanation:

Because How Many Is A Keyword

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3 years ago

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Question 10 of 10 A part of an mRNA has the base sequence GCA. Which change to this sequence would indicate a missense mutation?

Ratling [72]

I think it’s b! :) lmk if you got it right!!

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DNA damage can lead to mutations, which are permanent changes in the nucleotide sequence of a cell's DNA if they are not correct

patriot [66]

Answer:

can cause cancer.

Explanation:

The DNA damage is mostly repaired by the repair mechanisms present in cells. If DNA damage is not repaired, it can cause a random change in the genetic material of the organism. These changes in the DNA are permanent and are called mutations. Mutations may be adaptive or harmful. Mutations in a protooncogene leading to overproduction of protein to allow uncontrolled cell division can cause cancer. Similarly, a loss of function in tumor suppressor genes also causes cancer.

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