Common Aneuploidies & X-Chromosomal Inactivation Flashcards
1
Q
True or False?
The X chromosome is known to carry the genes for red-green color blindness, ornithine transcarbamylase, glucose-6-phosphate dehydrogenase, and Factor VIII
A
True
2
Q
Which of the following chromosomal abnormalities results in the smallest decrease in reproductive fitness?
A. Triploidy
B. Trisomy 13
C. Klinefelter syndrome
D. Turner syndrome
E. Pericentric inversion
A
E. Pericentric inversion
3
Q
What is the Lyon Hypothesis?
A
The Lyon Hypothesis states that in any given cell, there is only one active X chromosome
