Question

............ occurs only during meiosis.

• A. Pairing of homologues
• B. Separation of duplicated strands
• C. Cytokinesis
• D. Disappearance of nucleolus

Answer 1

Answer: (A)

Pairing of homologues

Meiosis generally occurs in the reproductive cell. One chromosome of each homologous pair comes from the mother (called as a maternal chromosome) and one comes from the father (paternal chromosome). Homologous chromosomes are similar but not identical. Each carries the same genes in the same order, but the alleles for each trait may not be the same. The pairing of homologous chromosomes is an essential feature of meiosis, acting to promote high levels of recombination and to ensure segregation of homologs.

So, the correct answer is option A.