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vlabodo [156]
3 years ago
6

You are examining a cell under the microscope and see what appear to be four sister chromatids bound together and remnants of th

e nuclear envelope. What stage of meiosis are you looking at?
Biology
1 answer:
Sever21 [200]3 years ago
8 0

Answer:

The correct answer will be-pachytene, prophase I,

Explanation:

Tetrad is the structure formed during the meiotic type of cell division which produces four daughter cells.

The tetrad structure is seen under the microscope during the pachytene substage of prophase I.

The tetrad structure is formed when four sister chromatids are aligned together in a cell before the crossing over event or recombination has to take place. The tetrad formation allows the crossing over to take place in pachytene.

Thus, pachytene, prophase I is the correct answer.

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Answer:

The answer is B

Explanation:

Its B because the definition of species is "a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding."

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Mutations can also appear in chromosomes altering their number and structure. There are four types of mutations - deletion, duplication, inversion, and translocation. In deletion, a whole or one part of a chromosome is lost. Duplication presents an extra copy of a whole or one part of a chromosome. In an inversion, parts of a chromosome change order, while in translocation a part of one chromosome detaches and then connects to another.


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6 0
3 years ago
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vagabundo [1.1K]

Respuesta B.

Explanation:

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