The number of linkage groups in an organism with sex chromosomes equals ________, where n equals the haploid number of autosomes.
A) 1n
B) 2n +1
C) 1n + 1
D) 2n + 2

Question

Quizplus · Accepted Answer

In an organism with sex chromosomes, the number of linkage groups is equal to the haploid number of autosomes plus one. Therefore, the correct answer is 1n + 1. Choice A is incorrect because it only accounts for the haploid number of autosomes, while choice B and D include an extra linkage group that is not present in organisms with sex chromosomes.

The Number of Linkage Groups in an Organism with Sex