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Essentials Of Human Disease 2nd Edition by Leonard Crowley
Edition 2ISBN: 978-1449688431Essentials Of Human Disease 2nd Edition by Leonard Crowley
Edition 2ISBN: 978-1449688431 Exercise 4
All of the following statements about chromosomal mosaicism are correct EXCEPT: A. The affected person has more than one population of chromosomally distinct cells.
B) Mosaicism results from chromosome nondisjunction occurring in the ovum prior to fertilization.
C) Mosaicism results from chromosome nondisjunction during a mitotic division of the fertilized ovum (zygote).
D) Persons with mosaic Down syndrome often have less disability than those in whom all the cells contain an extra chromosome 21.
E) Mosaicism may occur in association with other chromosomal abnormalities as well as Down syndrome.
B) Mosaicism results from chromosome nondisjunction occurring in the ovum prior to fertilization.
C) Mosaicism results from chromosome nondisjunction during a mitotic division of the fertilized ovum (zygote).
D) Persons with mosaic Down syndrome often have less disability than those in whom all the cells contain an extra chromosome 21.
E) Mosaicism may occur in association with other chromosomal abnormalities as well as Down syndrome.
Explanation
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The option (A) is incorrect.
Chromosoma...
Essentials Of Human Disease 2nd Edition by Leonard Crowley
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