Question

Plasmogamy is fusion of:

• A. Two haploid cells including their nuclei
• B. Two haploid cells without nuclear fusion
• C. Sperm and egg
• D. Sperm and two polar nuclei

Answer 1

Answer: (B)

Fusion between the sperm and egg cell is called fertilization. During fertilization process the protoplasm between the two compatible gametes (gametes may be motile or non-motile) fuses which is called plasmogamy. Followed by plasmogamy the nuclei of both the gametes fuses together. This fusion of nuclei is called karyogamy.