Questions: Multiple Choice Question When meiosis occurs without recombination, which of the following has occurred? Aneuploidy Achiasmate segregation Non-independent assortment Need help? Review these concept resources.

The answer is the second one (B): Achiasmate segregation.

Explanation for each option:

A. Aneuploidy: This refers to an abnormal number of chromosomes, which occurs due to errors in chromosome segregation during cell division. It is not directly related to the absence of recombination in meiosis.

B. Achiasmate segregation: This term describes the segregation of homologous chromosomes during meiosis without the formation of chiasmata, which are the physical manifestations of recombination. When meiosis occurs without recombination, it is referred to as achiasmate segregation.

C. Non-independent assortment: This would imply that genes are not assorting independently, which is typically due to linkage. However, the absence of recombination does not directly cause non-independent assortment; rather, it affects the physical exchange of genetic material between homologous chromosomes.

In summary, when meiosis occurs without recombination, achiasmate segregation has occurred.