[单选题]
The diagram shows a karyogram of a brd iun9tpf3jdkt6)w0) o:l ol5 kp(l6town male rat (Rapn1jg7d;59q3n i 1m;cxc 8dv cdh;rbrttus norvegicus). Which arrow is pointing to a pair7rpc5b 9dqxj3ivg ;mn ;dr1 cd8n1hc; 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.
