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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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If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely _________
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Answer:

Increase

Explanation:

The predator is a type of animal or bird species which kill other animals to obtain its food. The prey is the animal which is killed by the predator. According to the given situation, if the predator species A is eliminated, the population of the predator B will likely increase because there will be no competition between the two species for the same prey. And the chances of predator B obtaining the prey will increase. Hence, the population will increase.

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3 years ago
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1. in an ecosystem with four levels—producers, primary consumers, and two higher-level consumers—describe where the decomposers
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6 0
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Visible light comes from which one of the sun's layers?
White raven [17]

Answer:

The correct answer is photosphere.

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