Riobonucleoproteins named for their high concentrations of uracil (U1, U2, etc.) are commonly constituents of the单项选择题

A

spliceosome

B

open promoter complex

C

70S initiation complex

D

30S initiation complex

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类似问题

A gene encodes a pre-mRNA with 5 exons and 4 introns.  A mutation eliminates the 3’ splice site from intron 3. What exons would be found in the mRNA after splicing was completed?

In eukaryotes, what does the mRNA transcript contain? 

In eukaryotic cells, the initial RNA transcript (pre-mRNA) contains non-coding segments called [ Select ] spliceosomes promoters exons introns polymerase that intervene between coding regions. Before the RNA leaves the nucleus, a large protein-RNA complex called the [ Select ] introns polymerase exons ribosomes spliceosomes removes these non-coding parts and joins the coding regions, known as [ Select ] promoters spliceosomes polymerase exons introns together. This process allows a single gene to encode multiple different proteins depending on which segments are treated as coding.

In eukaryotic cells, the initial RNA transcript (pre-mRNA) contains non-coding segments called [ Select ] polymerase exons promoters spliceosomes introns that intervene between coding regions. Before the RNA leaves the nucleus, a large protein-RNA complex called the [ Select ] introns polymerase exons ribosomes spliceosomes removes these non-coding parts and joins the coding regions, known as [ Select ] spliceosomes introns polymerase exons promoters together. This process allows a single gene to encode multiple different proteins depending on which segments are treated as coding.

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