从葡萄糖合成糖原时,每加上1个葡萄糖 单位需消耗几个高能磷酸键
A.1个B.3个C.5个D.7个 F 9个
参考答案:B
图是染色体和DNA的关系图,据图回答下列问题:
(1)从结构上看,DNA分子的结构像一个______.
(2)遗传信息存在于______上.
(3)染色体在体细胞内是______存在的,DNA分子上控制某一性状的小片段,称为______.
根据句意用所给单词的适当形式填空。
1. The poor dog looked cold and ___________ (frighten).
2. You can go to Kate. She is willing ___________ (help)you.
3. There’re many places of ___________ (interesting) in our home town.
4. You can see two ___________ (baby) in the photo.
5. ____________ (lucky), he didn’t hurt himself.
6. The girl is preparing ___________ (go) horse riding.
7. Liu Xiang was the fastest ______(run) in 110-metre hurdle race in Guangzhou Asian Games.
8. Kitty wants to be an editor when she ___________ (grow) up.