Suppose that a rare DNA replication error results in the duplication of a single gene, giving the daughter cell two copies of t same gene. How does this change favor the acquisition of a new function by the daughter cell? The copy can undergo a gain-of-function or loss-of-function mutation without altering the original gene's function. The copy has already-formed domains with biological activity, so new functions do not need to evolve de novo. ✔ The duplicated gene increases the rate at which the cell can perform the function encoded by the original gene. The two genes can combine to form a new gene that encodes a protein with a new, additional function. The cell can make additional proteins, which then undergo alterations and can give rise to new functions.

Suppose that a rare DNA replication error results in the duplication of a single gene, giving the daughter cell two copies of t same gene. How does this change favor the acquisition of a new function by the daughter cell? The copy can undergo a gain-of-function or loss-of-function mutation without altering the original gene's function. The copy has already-formed domains with biological activity, so new functions do not need to evolve de novo. ✔ The duplicated gene increases the rate at which the cell can perform the function encoded by the original gene. The two genes can combine to form a new gene that encodes a protein with a new, additional function. The cell can make additional proteins, which then undergo alterations and can give rise to new functions.

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Description: Suppose that a rare DNA replication error results in the duplication of a single gene, giving the daughter cell two copies of thesame gene.How does this change favor the acquisition of a new function by the daughter cell?The copy can undergo a gain-

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 23QP: How does DNA replication occur in a precise manner to ensure that identical genetic information is...

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