Answered: A young couple is planning to have…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A young couple is planning to have children. Knowing that there have
been a substantial number of stillbirths, miscarriages, and fertility
problems on the husband’s side of the family, they see a genetic
counselor. A chromosome analysis reveals that, whereas the woman has
a normal karyotype, the man possesses only 45 chromosomes and is a
carrier of a Robertsonian translocation between chromosomes 22 and
13.
a. List all the different types of gametes that might be produced by the
man.
b. What types of zygotes will develop when each of gametes produced by
the man fuses with a normal gamete produced by the woman?
c. If trisomies and monosomies entailing chromosomes 13 and 22 are
lethal, approximately what proportion of the surviving offspring are
expected to be carriers of the translocation?

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