Question

R and Y genes of Maize lie very close to each other. When RRYY and rryy genotypes are hybridised, $F_2$ generation will show

• A. Sagregation in $9.3:3:1$ ratio
• B. Segregation in $3:1$ ratio
• C. Higher number of parental types
• D. Higher number of recombinant types

Answer 1

Answer: (C)

Higher number of parental types

When the linked genes are situated quite close, the chances of crossing over are highly reduced. Due to this, large number of parental gametes are formed and only few recombinant gametes are formed. This results in higher number of parental types in F2 generation as compared to recombinants.

So, the correct answer is 'Higher number of parental types'.