Question

what is the result of fertilization during sexual reproduction?
reduction of chromosome number
significant decrease in genetic variation
restoration of diploid number of chromosomes
production of multiple haploid cells

Explanation:

Fertilization is the process where a haploid sperm (n) fuses with a haploid egg (n). The combination of their genetic material results in a diploid zygote (2n). This restores the diploid number of chromosomes in the offspring.

• Reduction of chromosome number occurs during meiosis, not fertilization.
• Fertilization actually increases genetic variation (due to combination of different genetic materials from two parents), not decreases it.
• Production of haploid cells is a result of meiosis, not fertilization.

Answer:

restoration of diploid number of chromosomes