The march to Washington, D.C. in 1963 helped the passage of two civil rights acts.
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在蛋白质生物合成中，催化氨基酸活化的酶是______。
如果阅读框固定，一条给定mRNA的碱基顺序仅为一条肽链的氨基酸顺序编码。从像细胞色素C这样的蛋白质的一个特
A．Someone who is under 14.B．Someone who is backing into a parking space.C．Someone who
A. Someone who is under 14.
B. Someone who is backing into a parking space.
C. Someone who is delivering and collecting letters.
D. Someone who is picking up the children from the local school.
所有的氨酰-tRNA的合成都需要相应的氨酰-TRNA合成酶的催化。( )
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