Hole's Human Anatomy & Physiology (Shier), 12th Edition

Chapter 24: Genetics and Genomics

Pre-Test

Learning Outcome 24.1

1
Genes are segments of DNA that code for the _____.
A)trait of hair color
B)synthesis of proteins
C)muscle contraction
D)the function of insulin

Learning Outcome 24.8

2
The term __________ refers to having two different gene alleles.
A)homozygous
B)heterozygous
C)autosomal
D)karyotype

Learning Outcome 24.9

3
The genes for sickle cell anemia are inherited as a form of _____.
A)heterozygous recessive
B)autosomal recessive
C)incomplete dominance
D)codominance

Learning Outcome 24.15

4
Which of the following is associated with Down's syndrome?
A)XO
B)XYY
C)21, 21, 21
D)trisomy 22

Learning Outcome 24.8

5
If Chris, who carries the gene for cystic fibrosis, but does NOT have the disease, fathers a child with Rhonda, who also carries the cystic fibrosis gene, but does NOT have the disease, what is the likelihood that their first-born will have cystic fibrosis?
A)75% chance
B)50% chance
C)25% chance
D)0% chance

Learning Outcome 24.3

6
Theoretically, only 23 chromosomes are required to produce a normal human individual.
A)True
B)False

Learning Outcome 24.6

7
All humans have two sets of identical homologous chromosomes.
A)True
B)False

Learning Outcome 24.10

8
It is impossible to have a genotype for a trait and not have its phenotype.
A)True
B)False

Learning Outcome 24.7

9
Brown-eyed parents could not have a blue eyed child.
A)True
B)False

Learning Outcome 24.10

10
A person with blood type A will be completely genetically compatible with a transfusion from a donor with type A.
A)True
B)False
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