Question

A cross was made between two individuals. Some
offsprings obtained were parental and some were
recombinants. The maximum percentage of
recombinants and parental types in any cross can
be respectively

1)50% 100%
2)100% 50%
3)70% 70%
4)80% 80%​

Answer 1

The correct option is 1) 50% 100%.

• Recombination is described as a process that produces gametes that contain allele combinations that weren't present in the gametes from the parental generation.
• Recombination is significant because it contributes to the genetic diversity that can be seen within populations and that selection for evolution may work upon.
• For any cross between two individuals, the maximum recombinant frequency obtained is 0.5 or 50% and the parental types can be 100% maximum.
• The recombination frequency does not exceed 50%.
• If linkage of genes occurs, then the recombination frequency decreases and parental types increase.

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