Refer to the figure. Based on the information provided in the phylogenetic gene tree, multiple gene duplication events followed by mutations have created _______ that consist(s) of JAK and TYK2 genes.

Question

Refer to the figure.  Based on the information provided in the phylogenetic gene tree, multiple gene duplication events followed by mutations have created _______ that consist(s) of JAK and TYK2 genes.

Quizplus · Accepted Answer

The gene tree shows multiple copies of both JAK and TYK2 genes in different species, indicating gene duplication events followed by mutations. These gene duplicates form a family of related genes with similar functions, making choice E, a gene family, the best choice. The other options do not accurately describe the pattern of gene duplication and evolution shown in the gene tree.

Refer to the Figure