由助细胞、反足细胞或极核发育成胚称( )。

【名词&注释】

二倍体(diploid)、孤雌生殖(parthenogenesis)、子囊孢子(ascospore)、营养繁殖(vegetative propagation)、真菌孢子(fungal spore)、罂粟科(papaveraceae)、接合孢子(zygospore)、卵孢子(oospore)、助细胞(synergid)

[单选题]由助细胞^(synergid)、反足细胞或极核发育成胚称( )。

A. 孤雌生殖
B. 无配子生殖
C. 无孢子生殖
D. 营养繁殖

查看答案&解析 点击获取本科目所有试题

举一反三：

[单选题]团藻的细胞为衣藻型。( )

A. 正确
B. 错误

[单选题]One of the most important questions they had to consider was( ) of public health

A. what
B. this
C. that
D. which

[单选题]22_____

A. forced
B. warned
C. swept
D. reminded

[多选题]下列真菌孢子中，是二倍体的是( )。

A. 担孢子
B. 卵孢子^(oospore)
C. 接合孢子^(zygospore)
D. 子囊孢子

[多选题]属于罂粟科的特征是( )。

A. 植株常有黄、白色乳汁
B. 雌蕊心皮合生，侧膜胎座
C. 雄蕊多数
D. 蒴果瓣裂或孔裂

[单选题]What do you mean, there are only ten tickets? There _________ be twelve.

A. should
B. would
C. will
D. shall

[单选题]At what time of the school term does the comversation most probably take place?

A. At the end of it.
B. In the middle of it.
C. At the beginning of it.

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