Một gen có số nucleotit là 3000 .Trên mạch gốc của gen có A = 200, T = 600, G = 300. Số nucleotit từng loại trên mARN được tổng hợp từ gen này bằng bao nhiêu?

If you donot work hard. You won't get good marks

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1 its two months since they met each other

--> they havenot....................

2 she gave me a nice gift on my birthday

-->I war ....................

3 they speak english in many countries

-->english....................

4"which grade are you in?"

-->bao asked me............

5 she said,"i have helped my mother."

-->she said that...................

6"Do all these exercises at home" said the teacher

-->the teacher told us................

7 i dont now the answer so I can't help you

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