Question

Can one gene make different proteins?

a. No, because genes do not make proteins
b. No, because one gene can code for only a single protein
c. Yes, by splicing the resulting mRNA differently (i.e., removing different exons)
d. Yes, by modifying the original DNA

Answer 1

Yes, one gene can make different proteins through alternative splicing, where different combinations of exons are included or excluded from the final mRNA molecule.

Step-by-step explanation:

Yes, one gene can make different proteins through the process of alternative splicing. Alternative splicing is a mechanism in which different combinations of exons are included or excluded from the final mRNA molecule. This results in the production of multiple mRNA transcripts from a single gene, which can then be translated into different proteins.

For example, if a gene has three exons (A, B, and C), alternative splicing can result in the production of three different mRNA transcripts: one with all exons (ABC), one with exons A and B (AB), and one with exons B and C (BC). Each mRNA transcript can be translated into a different protein.