Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 13 - Chromosomes, Mapping, and the Meiosis-Inheritance Connection - Figure 13.14 - Inquiry Question: 1


Scenario 1: The mother has both of her X chromosomes go into her egg, which is then fertilized by a sperm with a Y chromosome. Scenario 2: The father has both his X chromosome and his Y chromosome go into his sperm, which then fertilizes an egg with one X chromosome.

Work Step by Step

To figure this problem out, first consider the normal genetic makeup of males (XY) and females (XX). Then construct scenarios in which an extra X chromosome ends up in a gamete but in which a Y chromosome can also be found in the resulting child.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.