A . tRNA
B . mRNA
C . hnRNA
D . snRNA
E . rRNA
[单选题]mRNA的前体是( )。A.tRNAB.mRNAC.hnRNAD.snRNAE.rRNA
[单选题,B1型题] mRNA的前体是()。A . tRNAB . mRNAC . hnRNAD . snRNAE . rRNA
[单选题]mRNA的前体是( )。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA的前体是( )。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA的前体是( )。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA的前体是( )。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA的前体是()。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA的前体是()。A.snRNAB.tRNAC.hnRNAD.mRNAE.rRNA
[单选题]mRNA前体称为()A . snRNAB . hnRNAC . mRNAD . shRNAE . rRNA