Which is required for the formation of gene families?

Question

Quizplus · Accepted Answer

Gene duplication is the process by which a gene or a segment of DNA is duplicated, resulting in multiple copies in the genome. This process is essential for the formation of gene families, which are groups of genes that have similar sequences and functions. Gene duplication can occur through various mechanisms, such as unequal crossing-over, retroposition, tandem duplication, etc. Once a gene duplicate is generated, it can acquire mutations and diverge in sequence and function from its ancestral gene, leading to the expansion of gene families. Repetitive DNA, pseudogenes, transposable elements, and regulatory sequences can also contribute to the diversification and evolution of gene families, but they are not essential for their formation.

Which Is Required for the Formation of Gene Families