A:图甲中,同源染色体之间可以发生交叉互换
B:图乙中,同源染色体分离,染色体数目减半
C:图丙中箭头所指细胞中染色体与DNA数量之比为1:2
D:得到上述图象均需染色
Yesterday afternoon, Lucy played _______basketball and Lily played _______ piano.