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Answered

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Are exons and introns expressed or
removed from pre-mRNA?
A. Both exons and introns are expressed.
B. Exons are expressed, and introns are removed.
C. Exons are removed, and introns are expressed.
D. Both exons and introns are removed.

Sagot :

genewho

The statement that is true about exons and introns of pre-mRNA is:

  • Exons are expressed, and introns are removed.

What is pre-mRNA?

Precursor mRNA or pre-mRNA is the first transcript of a protein-coding gene.

Characteristics of pre-mRNA

  • Introns are the DNA or RNA sequences that separate the exons, the pre-mRNA regions corresponding to these are eliminated in the nucleus during the maturation process.

  • The exons of a gene are the sequences that will give the messenger RNA that will be translated into amino acids.

Therefore, we can conclude that the pre-mRNA maturation process removes introns and joins exons to produce a mature messenger RNA molecule.

Learn more about pre-mRNA maturation here: https://brainly.com/question/9076330

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