Question

In a eukaryote, what is the best way to compare the number of genes in a genome to the number of proteins that

the genome can produce and why?
A) The number of proteins is equivalent to the number of genes due to alternative splicing.
B) The number of proteins is usually fewer than the number of genes due to alternate splicing.
C) The number of proteins is usually greater than the number of genes due to alternate splicing.
D) The number of proteins is usually greater than the number of genes due to histone modification.
E) The number of proteins is usually fewer than the number of genes due to histone modification.

Answer 1

The number of proteins is usually fewer than the number of genes due to alternative splicing.

Step-by-step explanation:

The number of proteins is usually fewer than the number of genes due to alternative splicing.

Eukaryotic gene regulation is more complex than in prokaryotes because eukaryotic genomes are larger and encode more genes. However, eukaryotes can produce more proteins than the number of genes they have through alternative splicing. Alternative splicing allows different combinations of exons to be included in the final mRNA, resulting in the production of different proteins from a single gene. Therefore, the number of proteins is usually fewer than the number of genes in a eukaryote.