Question

In a monohybrid cross between tall pea plants denoted by TT and short pea plants denoted by tt, Preeti obtained only tall plants denoted by Tt in the F1 generation. However, in F2 generation she obtained both tall and short pea plants. Using the above information, explain the law of dominance. *​

Answer 1

law of Dominance states that dominant alleles always mask the recessive alleles. In heterozygous conditions always dominant allele is expressed in the F1 generation. The characters that appear in an F1 generation are called dominant alleles and which are not expressed are recessive.

Based on the given experiment, two laws were formulated by Mendel. They are as follows:-

Law of Dominance

According to this law, characters are controlled by discrete units called factors that occur in pairs, with one member of the pair dominating over the other in a dissimilar pair.

This law explains the expression of only one of the parental characters in the F1 generation and the expression of both in the F2 generation.