Question

What are the characteristic features of a true-breeding line?

Answer 1

Definition

True breeding lines are the plants that produce only offspring of the same characteristics on self pollination.

Characteristic features

Characteristic features of a true-breeding line are as follows:

• Plants should be homozygous for a trait, with both dominant or both recessive alleles. For example, a plant with red flowers having RR genotype.
• It also shows stable trait inheritance, that means, it produces progeny with the same characteristics for several generations.
• It increases homozygosity over the generations.
• It also helps to eliminate the harmful recessive genes in certain cases.