Each of the following is a step in mitosis EXCEPT __________.
BIOLOGY
SAT 2021
Each of the following is a step in mitosis EXCEPT __________.
- A spindle fibers shorten
- B. homologous pairs separate and are pulled toward opposite poles of the cell
- C. chromosomes condense
- D. sister chromatids separate and are pulled toward opposite poles of the cell
Correct Answer: B. homologous pairs separate and are pulled toward opposite poles of the cell
Explanation
The step in mitosis that is not correctly described is: homologous pairs separate and are pulled toward opposite poles of the cell. In mitosis, homologous pairs of chromosomes do not separate and are not involved. Instead, homologous pairs are involved in the process of meiosis, which is responsible for the formation of gametes (sperm and eggs) and genetic variation. In mitosis, sister chromatids, which are replicated copies of chromosomes, separate and are pulled toward opposite poles of the cell. The correct step in mitosis is sister chromatids separate and are pulled toward opposite poles of the cell.
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