海军由水面舰艇、潜艇、航空兵、阵战队和岸防部队构成
参考答案:对
已知AUG、GUG为起始密码子,UAA、UGA、UAG为终止密码子,某信使RNA的碱基排列顺序如下:AUUCGAUGAC--(10个碱基)--CUCUAGAUCU,则此 信使RNA控制合成的多肽链最多含有多少个肽键 [ ]
A.4
B.5
C.6
D.7
用所给单词的适当形式填空。
1. We are good _________, we are very_________ (friend).
2. He likes watching TV and _________ (play) the guitar.
3. Please _________ (be) quiet! Here is library.
4. These man are from other _________ (country).
5. I'm hungry, I want something __________(eat)