Question
The table above shows five different types of chromosomal abnormalities that can occur during meiosis They result in either an individual having too many or too few chromosomes in their genome. What is the most likely cause of these chromosomal abnormalities? A deletion of chromosomes B insertion of chromosomes C translocation of chromosomes D nondisjunction of chromosomes
Answer
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Bernadette
Veteran · Tutor for 11 years
Answer
D. nondisjunction of chromosomes
Explanation
Chromosomal abnormalities during meiosis usually result from errors in the separation of chromosomes. The most common and likely cause of these errors is nondisjunction, which occurs when chromosomes fail to separate properly during cell division. This results in gametes with an abnormal number of chromosomes, leading to aneuploidy—individuals having too many or too few chromosomes in their genomes.