The genes a, b, and c are different genes that reside on the same chromosome. Genes a and b are 10 cM apart, b and c are 2 cM apart, and a and c are 8 cM apart. What is the order of these genes?

Question

Kiera Barker

Biology

20 August, 03:29

The genes a, b, and c are different genes that reside on the same chromosome. Genes a and b are 10 cM apart, b and c are 2 cM apart, and a and c are 8 cM apart. What is the order of these genes?

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Answers (1)

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Gustavo Davila · Answer 1

a-c-b

Explanation:

It is given that the three genes are present on the same chromosome. Out of them genes a and b are 10 cM apart so they are the farthest from each other. Gene c can lie between them according to the conditions given in the question. It will be 8cM apart from gene a and 2cM apart from gene b making the total distance as 10cm. Hence the final gene order will be a-c-b.