皮皮学，免费搜题
登录
搜题
【单选题】
“未来没有电子商务,只有线上线下融合的‘新零售’”,这句话是( )最开始提出来的?A.
东
B.
C.
D.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】有丝分裂与减数分裂 (Mitosis／Meiosis)
【单选题】Which of the following is unique to mitosis and not a part of meiosis?
A.
homologous chromosomes pair forming bivalents
B.
homologous chromosomes cross over
C.
chromatids are separated during anaphase
D.
homologous chromosomes behave independently
【简答题】During meiosis but not dring mitosis, homologous chromosomes pair up in a process of _________.
【单选题】which of the following events occurs during mitosis but not meiosis?
A.
segregation of sister chromatids
B.
pairing of homologous chromosomes
C.
alignment of chromosomes on the metaphase plate
D.
crossing-over between homologous chromosomes
E.
none of the above
【单选题】Mitosis results in ( ) chromosome number while meiosis results in ( ) chromosome number.
A.
a doubling of; no change in
B.
no change in; on change in
C.
a reductionq by half in; no change in
D.
no change in; a reduction by half in
相关题目：
【简答题】During meiosis but not dring mitosis, homologous chromosomes pair up in a process of _________.