Inner body 3d photography

(1) In Figure B, C is in the prophase of mitosis, corresponding to ①; D is in the prophase of the second meiosis, corresponding to ④.

(2) The DNA in nucleus A is half that of somatic cells; The DNA of B and C nuclei is twice that of somatic cells. The DNA of D nucleus is the same as that of somatic cells.

(3) The chromosome number of A and D is half that of somatic cells, and the chromosome number of B and C is equal to that of somatic cells.

(4) Among the four cells shown in Figure B, B and C contain homologous chromosomes.

So the answer is:

( 1)⑤③①④

⑵d

(3)b and c

(4)b and c? B, c and d

So the answer is:

( 1)①④

⑵d

(3)b and c

(4)b and c