Which of the following description is NOT correct about the post-transcriptional processing of mRNA:()
A. The m7GpppNmp cap should be added to the 5’ end of precursor mRNA.
B. The splicing process is needed for precursor mRNA.
C. The poly(U) tail should be added on the 3’ end of precursor mRNA.
D. The mRNA precursor can be methylated in higher organisms.
查看答案
The cap structure of mRNA in eukaryotic cells is.()
A. 7- methyl guanine nucleoside triphosphate
B. 7- methyl uracil nucleoside triphosphate
C. 7- methyl adenine nucleoside triphosphate
D. 7- methyl cytosine nucleoside triphosphate
The post-transcriptional processing of mRNA in eukaryotic cells does not include:()
A. The CCA-OH is added on it
B. The cap structure is added on the 5’ terminal
C. The poly(A) tail is added on the 3’ terminal
D. The splicing of introns
Part of introns in eukaryotic cells have branch points, and around these points are some conservative sequences binding with the U2 splicesome.()
The tRNA and rRNA moleclues of eukaryotic cells also need to be spliced.()
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