Which of the following statements is true of nondisjunction?
A. Nondisjunction means “not coming apart.”
B. Nondisjunction is caused by chromosome pairs that fail to separate correctly.
C. Nondisjunction occurs when pieces of chromosomes break off and get lost.
D. Both A and B are true of nondisjunction.

Question

Which of the following statements is true of nondisjunction? 
	A.	Nondisjunction means “not coming apart.”
	B.	Nondisjunction is caused by chromosome pairs that fail to separate correctly.
	C.	Nondisjunction occurs when pieces of chromosomes break off and get lost.
	D.	Both A and B are true of nondisjunction.

anonymous · Answer

Which of the following is a genetic disorder carried by a recessive allele that can cause severe mental retardation if a strict diet is not followed and affects approximately one child out of every 15,000?
	A.	Huntington disease
	B.	Tay-Sachs
	C.	PKU
	D.	Cystic fibrosis

anonymous · Answer

D Definitely

anonymous · Answer

Sometimes during meiosis, chromosomes may break off and get lost. This is called ______. 
	A.	chromosome division
	B.	chromosome deletions
	C.	chromosome elimination
	D.	chromosome corrosion