题目
题目

AGRI10051_2025_SM2 Supplementary or Special Exam: Genetics for Agriculture (AGRI10051_2025_SM2)- Requires Respondus LockDown Browser

单项选择题

In eukaryotes, what does the mRNA transcript contain? 

选项
A.The primary mRNA transcript contains both intronic and exonic regions.
B.The mature mRNA transcript contains both introns and exons.
C.The mature mRNA transcript only contains the introns because the exons have been spliced out.
D.The primary mRNA transcript only contains the exons because the introns have been spliced out.
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思路分析
In this question about mRNA in eukaryotes, we need to distinguish between the primary transcript and the mature mRNA. Option 1: The primary mRNA transcript contains both intronic and exonic regions. This is correct because the initial transcription product, pre-mRNA, ......Login to view full explanation

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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.

Question at position 88 Eukaryotic mRNAs that have not been spliced can be translated.TrueFalse

Question at position 10 When RNA splicing occurs:ribosomes are split in halfintrons are removed from mRNAit means that a poly-adenine tail has been added50s and 30s ribosomal subunits are joined togetherDNA ligase is required

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