Which of the following is NOT true regarding the members of a protein family in general? a. They have similar three-dimensional conformations. b. They share an ancestry; i. e. they are homologs. c. They can functionally replace each other. d. Their gene sequence is less well conserved than their structure. e. Over evolutionary time scales, the family has expanded mainly through gene duplication events.

Question

Biology

Armani Fry

5 December, 23:04

Which of the following is NOT true regarding the members of a protein family in general? a. They have similar three-dimensional conformations. b. They share an ancestry; i. e. they are homologs. c. They can functionally replace each other. d. Their gene sequence is less well conserved than their structure. e. Over evolutionary time scales, the family has expanded mainly through gene duplication events.

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Answers (1)

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Arthur Dalton · Answer 1

d. Their gene sequence is less well conserved than their structure.

Explanation:

The fundamental definition of a protein family is that they need to be homologous or share strong sequence identity/similarity.

Whereas a protein superfamily encompasses proteins that may not be homologous but share similarities in their structures.