McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What is an epistatic gene?

A. An epistatic gene controls the cell cycle.
B. An epistatic gene suppresses the expression of another gene, usually in a biochemical pathway.
C. An epistatic gene is one whose expression is controlled by environmental factors.
D. An epistatic gene is a jumping gene.


2. Aside from the example shown in this diagram, what is another example of epistasis?

A. polydactyly
B. male-pattern baldness
C. relationship between phenylketonuria (PKU) and albinism
D. Marfan syndrome
Copyright ©2000 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.
For further information about this site contact mhhe_webmaster@mcgraw-hill.com Corporate Link