Question

Karyogamy is?

• A. Fusion of two germ cells
• B. Fusion of two gametic nuclei
• C. Fusion of a somatic cell and a reproductive cell
• D. Fusion of two somatic cells

Answer 1

The correct option is B Fusion of two gametic nuclei

Karyogamy is the final step that is conducting the process of fusing two haploid eukaryotic cells together. It then refers specifically to the fusion of the two nuclei. For its occurrence, the cell membrane and cytoplasm of each cell must fuse by the process termed as plasmogamy. It is a common feature of all diploid organisms undergoing sexual reproduction.

Therefore the correct answer is option B.