Question

The appearance of a hidden character in some offsprings in F${}_2$ generation obeys the law of

• A. Purity of gametes
• B. Dominance
• C. Codominance
• D. Independent assortment

Answer 1

The correct option is A Purity of gametes

Principle of segregation or law of purity of gametes states that a gamete may carry either the dominant or the recessive allele but not both. This suggests that there is no blending of alleles in F${}_1$, but that they stay together and only one is expressed. The gametes which are formed are always pure for a particular character.
Thus, in F${}_1$ generation, the recessive character hides up in presence of dominant allele but finally separates and reappears in F${}_2$ generation.