In a synthetic variety of maize produced by combining 10 lines, the loss of excess vigour in F2 generation will be
A. 1/10
B. 1/5
C. 1/4
D. 1/2
Answer: Option A
Solution (By Examveda Team)
In a synthetic variety of maize produced by combining 10 lines, the loss of excess vigour in F2 generation will be 1/10.Under the dominance hypothesis, detrimental recessive alleles accumulate in the homozygous state during inbreeding and cause a reduction in vigour or inbreeding depression.
As the synthetic variety is produced by combining 10 lines, therefore the loss of excess vigour in F2 generation will be 1 upon 10.
This Question Belongs to Agriculture >> Genetics And Plant Breeding
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