Download Mutations and Genetics Test Review 1. What percentage of human

Mutations and Genetics Test Review
1. What percentage of human sperm cells carry an
X chromosome?
a.
0%
b.
25%
c.
50%
d.
100%
2. Sex-linked genes are located on
a.
the autosomal chromosomes.
b.
the X chromosome only.
c.
the Y chromosome only.
d.
both the X chromosome and the Y
chromosome.
3. Certain drugs can be used in plant breeding to
make polyploid plants. These drugs
a.
change the number of sets of
chromosomes found in cells.
b.
change eukaryotic plants into
prokaryotic plants.
c.
frequently cause mutations, which create
new alleles and genes.
d.
insert foreign DNA into plant
chromosomes.
4. Which of the following would require the use of
recombinant DNA?
a.
Crossing two apple trees to create better
apples.
b.
Breeding a donkey and a horse to make
a mule.
c.
Engineering bacteria that produce
human insulin.
d.
Creating a polyploid banana tree.
5.
One reason farmers often choose GM crops
over non-GM crops because GM crops are
a.
much safer.
b.
more productive.
c.
less expensive.
d.
less controversial.