
Genetics - Analysis and Principles 3rd Edition by Robert Brooker
Edition 3ISBN: 978-0071287647
Genetics - Analysis and Principles 3rd Edition by Robert Brooker
Edition 3ISBN: 978-0071287647 Exercise 7
Figure 5.6 describes the results of X-chromosome inactivation in mammals. If fast and slow alleles of glucose-6-phosphate dehydrogenase (G-6-PD) exist in other species, what would be the expected results of gel electrophoresis for a heterozygous female of the following species
A. Marsupial
B. Drosophila melanogaster
C. Caenorhabditis elegans (Note: We are considering the hermaphrodite in C. elegans to be equivalent to a female.)
FIGURE 5.6 Evidence that adult female mammals contain one X chromosome that has been permanently inactivated.
Starting material: Several small skin samples taken from a woman who was heterozygous for the fast and slow alleles of G-6-PD.

A. Marsupial
B. Drosophila melanogaster
C. Caenorhabditis elegans (Note: We are considering the hermaphrodite in C. elegans to be equivalent to a female.)
FIGURE 5.6 Evidence that adult female mammals contain one X chromosome that has been permanently inactivated.
Starting material: Several small skin samples taken from a woman who was heterozygous for the fast and slow alleles of G-6-PD.

Explanation
In Caenorahabditis , the gel electrophor...
Genetics - Analysis and Principles 3rd Edition by Robert Brooker
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