Please answer all questions.

1			All person's with Down's syndrome display profound mental retardation.
			A)	True
			B)	False
2			The genes of an individual will always be different from those of the parents.
			A)	True
			B)	False
3			Theoretically, only 23 chromosomes are required to produce a normal human individual.
			A)	True
			B)	False
4			All humans have two sets of identical homologous chromosomes.
			A)	True
			B)	False
5			It is impossible to have a genotype for a trait and not have its phenotype.
			A)	True
			B)	False
6			Brown-eyed parents could not have a blue eyed child.
			A)	True
			B)	False
7			A person with blood type A will be completely genetically compatible with a transfusion from a donor with type A.
			A)	True
			B)	False
8			If a child contains a gene that is not found in either parent, then one of them is not the biological parent.
			A)	True
			B)	False
9			Traits such as skin pigmentation are totally governed by inheritance.
			A)	True
			B)	False
10			Gene therapy has not been completely successful at this time.
			A)	True
			B)	False
11			All forms of gene therapy changes cannot be inherited.
			A)	True
			B)	False
12			Fetal stem cells have no value over mature bone marrow in gene therapy research.
			A)	True
			B)	False
13			A younger women has a higher risk of a Down's conception than one who is older.
			A)	True
			B)	False
14			Chorionic villus sampling is less invasive than amniocentesis.
			A)	True
			B)	False
15			Gene therapy using the liver can be used to prevent heart disease.
			A)	True
			B)	False
16			Viruses are the usual causes of brain tumors such as gliomas.
			A)	True
			B)	False
17			The phenomenon of incomplete dominance will result in the meiosis of cells with two forms of a particular gene.
			A)	True
			B)	False
18			Males always determine the sex of a fetus?
			A)	True
			B)	False
19			A male with color blindness cannot have a daughter who is color blind because it is X-linked recessive.
			A)	True
			B)	False
20			It is possible for human cells to have more than 46 chromosomes.
			A)	True
			B)	False
21			The disintegration of chromosomes during meiosis is called nondisjunction.
			A)	True
			B)	False
22			Older women carry a greater chance of having a child with trisomy 21 than a younger mother.
			A)	True
			B)	False
23			Persons with Turner's syndrome have male chromosomes but have a female appearance.
			A)	True
			B)	False
24			Only the sperm have the ability to determine the sex of the offspring.
			A)	True
			B)	False
25			All genetic abnormalities are inherited.
			A)	True
			B)	False
26			Sex-linked genes are those associated with chromosomes X or Y.
			A)	True
			B)	False
27			Males and females have equal chances of inheriting X-linked disorders.
			A)	True
			B)	False
28			All birth defects are genetic and inherited.
			A)	True
			B)	False