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Multiple Choice
Which of the following is a process that occurs in both mitosis and meiosis?
A
Crossing over between homologous chromosomes
B
Separation of sister chromatids
C
Production of four genetically unique daughter cells
D
Reduction of chromosome number by half
Verified step by step guidance
1
Understand the key processes of mitosis and meiosis. Mitosis is a type of cell division that results in two genetically identical daughter cells, while meiosis produces four genetically unique daughter cells and reduces the chromosome number by half.
Review the concept of sister chromatids. Sister chromatids are identical copies of a chromosome connected by a centromere. Their separation is a critical step in both mitosis and meiosis.
In mitosis, the separation of sister chromatids occurs during anaphase, where the chromatids are pulled apart to opposite poles of the cell.
In meiosis, the separation of sister chromatids occurs during meiosis II, specifically in anaphase II, after homologous chromosomes have been separated in meiosis I.
Conclude that the separation of sister chromatids is a process common to both mitosis and meiosis, distinguishing it from processes like crossing over, reduction of chromosome number, or production of genetically unique cells, which are specific to meiosis.