Question

Question 5 (1 point)

Describe this: Tt

Question 5 options:

	A) homozygous phenotype
	B) heterozygous genotype
	C) homozygous genotype
	D) heterozygous phenotype

Question 6 (1 point)

Which of these is a prenatal genetic test?

Question 6 options:

	A) in vitro fertilization
	B) nuclear transplantation
	C) chorionic villi sampling
	D) DNA profiling

Question 7 (1 point)

All the offspring of a white hen and a black rooster are gray. The simplest explanation for this type of inheritance is:

Question 7 options:

	A) pleiotropy
	B) incomplete dominance
	C) sex linkage
	D) co-dominance

Question 8 (1 point)

Which of these is a recessive disorder?

Question 8 options:

	A) achrondroplasia
	B) Huntington's disease
	C) one type of Alzheimers disease
	D) PKU phenylketonuria

Answer 1

5. B) heterozygous genotype.

6. C) Chorionic villi sampling.

7. B) Incomplete dominance. since the grey color is intermediate between black and white.

8. D) phenylketonuria. (autosomal recessive)

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