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I am Lyosha [343]
3 years ago
7

A diploid cell has 28 chromosomes. When meiosis occurs, how many chromosomes are there during Prophase I?

Biology
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

The correct answer will be option-B

Explanation:

Meiosis is a way of cell division used by the organism to produce a large number of cells from a few parent cells. This is used to make the gametes of the body.

Meiosis produces four daughter cells from a single parent cell in two stages that is meiosis I and II. Each stage proceeds in four phases- prophase, metaphase, anaphase and telophase.

The reduction division of the chromosomes or the ploidy number takes place during anaphase I of meiosis I and not prophase I which is the initial phase of the division. Therefore, during prophase I the chromosome number of the cell remains the same.

Thus, Option-B is the correct answer.

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Specialized enzymes called _____ polymerases can bypass distortions in the DNA template but tend to introduce replication errors
Yuri [45]

Answer:

The correct answer is: translesion.

Explanation:

Also called DNA polymerase V, the translesion polymerase is responsible for the repair of the DNA in prokaryotes like Escherichia coli.

These special enzymes repair DNA lesion during DNA replication. If the enzyme fails, the damage in the DNA can lead to the death of the cell.

Replication in prokaryotes is much more prone to errors than replication in eukaryotes, one of the reasons being this polymerase not being as effective as the polymerase in charge of repairing eukaryotic DNA, the DNA polymerase beta.

5 0
3 years ago
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Tpy6a [65]

Answer:

Petroleum gas is mainly C3 and C4 based (propane and butane), whilst natural gas is predominantly C1 and C2 (methane and ethane). Petroleum gas is generally produced via the cracking of naphtha, which is one of the components separated during crude oil refining.

Explanation:

7 0
3 years ago
"if left untreated, hypertension can lead to ____."
katrin2010 [14]

If left untreated, the probable lead for hypertension to an individual is kidney failure. It is because the blood pressure is associated with the kidneys because the nephrons of the kidneys are being supplied with the blood vessels dense network and also because of the blood that flows through it, when there is a presence of hypertension and left untreated, it could cause the kidney to weaken or harden—causing kidney failure.

7 0
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Does increasing pressure, decrease or increase water potential?​
LUCKY_DIMON [66]

Answer:

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Explanation:

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Dr. ting is working with a 16-year-old client who presents with the symptoms of a moderate case of depression. as part of his in
algol [13]

I believe the answer is Axis III

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