The recombination frequency between genes B a | vedclass

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(A) Recombination frequency is directly proportional to the distance between genes on a chromosome. $1\%$ recombination frequency is equal to $1$ cent

Vedclass · Accepted Answer

$B-A-C$

Vedclass · Answer

(A) Recombination frequency is directly proportional to the distance between genes on a chromosome. $1\%$ recombination frequency is equal to $1$ centimorgan $(cM)$ or map unit.Given:Distance between $B$ and $A = 5$ map units.Distance between $A$ and $C = 15$ map units.If the gene order is $B-A-C$,the distance between $B$ and $C$ would be $5 + 15 = 20$ map units.If the gene order is $C-A-B$,the distance between $C$ and $B$ would be $15 + 5 = 20$ map units.Both $B-A-C$ and $C-A-B$ represent the same linear arrangement on the chromosome. Looking at the options,$B-A-C$ is provided as a valid sequence.

The recombination frequency between genes $B$ and $A$ is $5\%$. The recombination frequency between genes $A$ and $C$ is $15\%$. What is the possible sequence of these genes on the chromosome?

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