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,...
Related questions
Question
Mutations in DNA that result in altered proteins can cause
hereditary diseases. Pedigree studies and genetic testing may
clarify the risk of disease. At the chromosome level, nondisjunction
during meiosis can result in gametes with too few or too many
chromosomes, most of which produce inviable offspring.
Imprinting refers to inactivation of alleles depending on which
parent the alleles come from; offspring in whom imprinting occurs
appear haploid for the affected gene even though they are diploid.
During spermatogenesis, is there any difference in outcome between first- and second-division nondisjunction?
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