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Definition of Linkage and Linked Genes

Number of lin...

Question

Number of linkage groups in Escherichia coli is

A

1

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B

2

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C

4

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D

5

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Solution

The correct option is B 1
The total number of linkage groups in an organism equals to the number of autosomes in its haploid cell. Escherichia coli is a haploid organism and carries single DNA molecule. Hence, the total number of linkage groups will be 1 provided all the genes are mapped. The correct answer is A.

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