If map distance between genes P and Q is 4 units, between P and R is 11 units, and between Q and R is 7 units, the order of genes on the linkage map can be traced as follows.

Q P R

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P R Q

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P Q R

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P Q P R Q R

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Solution

The correct option is C P Q R
So, the order of the genes is:
P Q R

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If map distance between genes P and Q is 4 units, between P and R is 11 units, and between Q and R is 7 units, the order of genes on the linkage map can be traced as follows.

The correct option is C P Q RSo, the order of the genes is: P Q R

The correct option is C P Q R
So, the order of the genes is:
P Q R