Please answer all questions

1		The physical appearance of the individual is called the phenotype.
			A)	True
			B)	False
2		A recessive allele must be received by both parents to bring about a recessive phenotype.
			A)	True
			B)	False
3		Each child has a 50% chance of having a recessive phenotype if one parent is heterozygous and the other is pure recessive.
			A)	True
			B)	False
4		Tay-Sachs disease is of high incidence among Jewish people in the United States.
			A)	True
			B)	False
5		Individuals with PKU lack an enzyme for the metabolism of phenylalanine.
			A)	True
			B)	False
6		Individuals with PKU must be on a diet throughout their lives.
			A)	True
			B)	False
7		For genetic diseases, dominant and recessive alleles have different patterns of inheritance as demonstrated by pedigree charts.
			A)	True
			B)	False
8		When two people with medium-brown skin reproduce with one another, the children will all have medium-brown skin.
			A)	True
			B)	False
9		The Rh factor is inherited jointly with A, B, AB, or O blood types.
			A)	True
			B)	False
10		Sickle-cell disease is controlled by incompletely dominant alleles.
			A)	True
			B)	False
11		In Africa, where malaria occurs, infants with sickle-cell trait have a better chance of survival than the normal homozygote.
			A)	True
			B)	False
12		Regarding x-linked recessive genetic conditions, both males and females are affected with equal frequency.
			A)	True
			B)	False
13		Color-blind females are rare because they must receive the allele from both parents.
			A)	True
			B)	False
14		The lack of a protein called dystrophin causes the most common form of muscular dystrophy.
			A)	True
			B)	False