Anaphase-promoting complex (APC) is a protein degradation machinery necessary for the proper mitosis of an animal cell. If APC is defective in a human cell, which of the following is expected to occur?
Correct answer: B. Chromosomes will not segregate
- A. Chromosomes will be fragmented
- B. Chromosomes will not segregate
- C. Recombination of chromosome arms will occur
- D. Chromosomes will not condense
Explanation
During anaphase in mitosis, sister chromatids segregate at opposite poles. Therefore, a defective APC will affect chromosome segregation.A defective APC can have detrimental consequences for the proper functioning of mitosis and the cell cycle. It can lead to a range of issues, including genomic instability, aneuploidy, cancer development, and cell death, ultimately affecting the overall health and functionality of an organism. The specific effects may vary depending on the extent and nature of the APC defect.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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