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1. A person with type O blood inherits
a.
two dominant alleles for blood type.
b.
two recessive alleles for blood type.
c.
one dominant allele and one recessive allele for blood type.
d.
neither dominant nor recessive alleles for blood type.
2. A son born to a father with normal color vision and a mother who is a carrier of red-green colorblindness has what probability of being red-green colorblind?
a.
0%
b.
25%
c.
50%
d.
100%
3. A daughter born to a red-green colorblind father and a mother a non-carrier mother with normal color vision has what probability of being red-green colorblind?
a.
0%
b.
25%
c.
50%
d.
100%
4. Genetic disorders are caused by changes in
a.
diet.
b.
activity level.
c.
DNA.
d.
climate.
5. A genetic disorder that affects the blood's ability to clot is
a.
cystic fibrosis.
b.
sickle-cell disease.
c.
Down syndrome.
d.
hemophilia.
6. A picture of all the cell's chromosomes is called a
a.
karyotype.
b.
pedigree.
c.
genome.
d.
genotype.
7. Crossing two plants with desirable traits is an example of
a.
multiple alleles.
b.
selective breeding.
c.
cloning.
d.
genetic engineering.
8. Genes from one organism may be transferred into the DNA of another in the process called
a.
selective breeding.
b.
inbreeding.
c.
cloning.
d.
genetic engineering.
9. The insertion of a working gene into the cells of a person with a genetic disorder is called
a.
inbreeding.
b.
hybridization.
c.
gene therapy.
d.
DNA fingerprinting.
10. All of the DNA in one cell of an organism is a
a.
genotype.
b.
genome.
c.
karyotype.
d.
phenotype.