Both deletions and insertions occur during the evolution of microbial genomes.Insertions bring in new genes that may be useful for the cell,but deletions
A) may increase fitness of a microorganism by eliminating unneeded genes.
B) always result in a severe loss of fitness for the microorganism.
C) are uncommon because they are usually lethal.
D) always result in a severe loss of fitness but keep microbial genomes compact.

Question

Quizplus · Accepted Answer

Deletions can increase fitness of a microorganism by eliminating unneeded or detrimental genes. This can reduce the metabolic burden on the cell and streamline its genome. However, in some cases, deletion of important genes can lead to reduced fitness or even lethality. Overall, deletions can be beneficial or detrimental depending on the specific gene and context.

Both Deletions and Insertions Occur During the Evolution of Microbial