One form of Down syndrome is due to a(n) :
A) extra X chromosome
B) extra autosome
C) extra haploid set of chromosomes
D) simple gene mutation
Correct Answer:
Verified
Q45: Regulatory genes:
A)initiate or block the activity of
Q46: A person is phenotypically male only if
Q47: The regulation of the expression of a
Q48: Persons with Turner's syndrome:
A)are phenotypically male
B)have a
Q49: Amniocentesis is a technique for determining:
A)if the
Q51: Ashkenazi Jews:
A)are the only population to carry
Q52: Male phenotype,sterility,small penis,breast enlargement in 40 percent
Q53: The relative distance between individual genes on
Q54: A person:
A)with one X and one Y
Q55: Which of the following statements about cloning
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