30.We think that it’s love, generosity and perseverance______make the world it is today. A.what; that B.that; what C.which; what D.which; that 答案:B下列关于同源染色体概念的叙述中,不正确的是
A.一条染色体经过复制而形成的两条染色体
B.一条来自父方、一条来自母方成对的两条染色体
C.在减数分裂中能联会的两条染色体
D.形状和大小一般都相同的两条染色体