[单选题]
The diagram shows a karyogramflwxu; eb7 +n6cy ,zq50*ntr y of a ta xy8i69e +bkbrown male rat (Rattus norvegicus). Which arrow is pointing to ai96b8a y+ekx t pair of autosomes?
A.
B.
C.
D.
参考答案: B
本题详细解析:
Autosomes are chromosomes that are not the sex chromosomes. Choice B is correct.
Choice A is incorrect as it is pointing to one autosome, not a pair. Choice C is incorrect as it is pointing to two pairs of autosomes. Choice D is incorrect as it is pointing to the sex chromosomes.
