Multiple Choice
In animal cell mitosis, which structure anchors the mitotic spindle at the cell cortex to help position it?
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16. Cell Division
Mitosis
Multiple Choice
In multicellular eukaryotes, the primary purpose of mitosis is to:
A
Reduce the chromosome number by half to produce haploid gametes
B
Generate genetic variation by crossing over between homologous chromosomes
C
Synthesize DNA to duplicate the genome prior to cell division
D
Produce two genetically identical daughter cells for growth, tissue repair, and asexual reproduction
Verified step by step guidance1
Understand the role of mitosis in multicellular eukaryotes: Mitosis is a type of cell division that results in two daughter cells, each genetically identical to the parent cell.
Recall that mitosis maintains the chromosome number of the original cell, meaning it does not reduce the chromosome number by half; that process occurs during meiosis.
Recognize that genetic variation through crossing over happens during meiosis, not mitosis, so mitosis does not generate genetic variation in this way.
Know that DNA synthesis (replication) occurs during the S phase of the cell cycle, which precedes mitosis, but mitosis itself is the process of dividing the duplicated chromosomes into two cells.
Conclude that the primary purpose of mitosis is to produce two genetically identical daughter cells, which is essential for growth, tissue repair, and asexual reproduction in multicellular organisms.
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