Q269
In back cross breeding repeated crossing. With recurrent parent is done to
A.
Transfer the desirable gene from donor parent
B.
Break undesirable linkage
C.
Retain the intensity of desirable gene
D.
Completely recover the genotype of recurrent parent
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
In back cross breeding repeated crossing. With recurrent parent is done to Completely recover the genotype of recurrent parent.Backcross breeding enables breeders to transfer a desired trait such as a transgene from one variety (donor parent, DP) into the favoured genetic background of another (recurrent parent, RP).
If the trait of interest is produced by a dominant gene, this process involves four rounds of backcrossing within seven seasons.