17
QuizMultiple Select

Unit Test — Unit test

Question 17 • IL-Science 7 A

Which statements describe differences between metaphase I and metaphase II? Select two options.Chromosomes line up in the middle in metaphase I only.Chromosomes condense in metaphase I only.A cell has half the number of chromosomes in metaphase II.There are twice the number of cells in metaphase II.Spindle fibers exist in metaphase II only.

Answer
A
Chromosomes line up in the middle in metaphase I only.
B
Chromosomes condense in metaphase I only.
C
A cell has half the number of chromosomes in metaphase II.
D
There are twice the number of cells in metaphase II.
E
Spindle fibers exist in metaphase II only.

Explanation

After meiosis I, the two cells entering metaphase II each have half the chromosome number of the original cell, so C is correct. There are also two cells in metaphase II, compared with one cell in metaphase I, so D is correct. Chromosomes line up at the middle and spindle fibers are present in both stages; chromosomes do not condense only in metaphase I.

AI-written and checked against the verified answer.

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