Question

hLo gUyS.

gOoD mOrNiNg.


explain.


about

Mendel's third law..

Answer 1

Mendel’s law of dominance states that a dominant allele expresses itself in a monohybrid cross and suppresses the expression of recessive allele. However, this recessive allele for a character is not lost and remains hidden or masked in the progenies of F1 generation and reappears in the next generation.

For example, when pea plants with round seeds (RR) are crossed with plants with wrinkled seeds (rr), all seeds in F1 generation were found to be round (Rr). When these round seeds were self fertilized, both the round and wrinkled seeds appeared in F2 generation in 3: 1 ratio. Hence, in F1 generation, the dominant character (round seeds) appeared and the recessive character (wrinkled seeds) got suppressed, which reappeared in F2 generation.

Answer 2

good morning
Mendel's third law is the law of independent assortment. In a dihybrid cross segregation of one pair is independent of another pair. so there is independent combination of factors of one pair with the factors of another pair during gamete formation. hence four types of gametes are formed in dihybrid cross in equal proportion.