Multiple Choice
What is the source of the extra chromosome 21 in an individual with Down syndrome?
A) nondisjunction in the mother only
B) nondisjunction in the father only
C) duplication of the chromosome
D) nondisjunction or translocation in either parent
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q28: Down syndrome has a frequency in the
Q30: Which of the following statements describes the
Q31: A translocation causes which of the following
Q32: In humans, clear gender differentiation occurs not
Q35: What does a frequency of recombination of
Q36: What event causes all female mammals to
Q38: What is the reason that closely linked
Q39: Map units on a linkage map cannot
Q58: What is a syndrome?<br>A) a characteristic facial
Q59: Use the following information to answer the