WorksheetsGenetics (continued)
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Colorblindness is more common in males than in females because
a)
fathers pass the allele for colorblindness to their sons only.
b)
the allele for colorblindness is located on the Y chromosome.
c)
the allele for colorblindness is recessive and located on the X chromosome.
d)
males who are colorblind have two copies of the allele for colorblindness.
2.
Which of the following combinations of sex chromosomes represents a female?
a)
XY
b)
XXY
c)
XXXY
d)
XX
3.
When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited...
a)
an allele for tallness from each parent.
b)
an allele for tallness from the tall parent and an allele for shortness from the short parent.
c)
an allele for shortness from each parent.
d)
an allele from only the tall parent.
4.
Variation in human skin color is a result of ....
a)
incomplete dominance.
b)
codominance.
c)
polygenic traits.
d)
multiple alleles.
5.
If an organism's diploid number is 12, its haploid number is...
a)
12
b)
6
c)
24
d)
3
6.
Linked genes...
a)
are never separated.
b)
assort independently.
c)
are on the same chromosome.
d)
are always recessive.
7.
Bacteria can be transformed by....
a)
RNA.
b)
DNA.
c)
Proteins.
d)
Carbohydrates.
8.
DNA replication results in two DNA molecules,
a)
each with two new strands.
b)
one with two new strands and the other with two original strands.
c)
each with one new strand and one original strand.
d)
each with two original strands.
9.
A female inherits
a)
one copy of every gene located on each of the X chromosomes.
b)
twice as many sex chromosomes as a human male inherits.
c)
one copy of every gene located on the Y chromosome.
d)
all of the same genes that a human male inherits.
10.
A double helix structure exists for a(an)....
a)
protein.
b)
RNA molecule.
c)
amino acid.
d)
DNA molecule.
100 %
