According to Mendel's law of segregation, the alleles for a trait separate during:
A. Fertilization
B. Mitosis
C. Embryogenesis
D. Gamete formation
Answer: Option D
Solution (By JKSSB Mock Tests)
Mendel's first law (law of segregation) states that two alleles of a gene separate during gamete formation (meiosis) so that each gamete receives only one allele. This is due to the separation of homologous chromosomes in anaphase I of meiosis. Fertilization restores the diploid number. This law explains the 3:1 phenotypic ratio in monohybrid crosses. Mitosis maintains the allele pair.
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