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WorksheetsHuman Genetics Practice EOC Questions
Total questions: 15
Worksheet time: 4hrs 45mins
Name
Class
Date
1.
The inheritance of short wings in Drosophila fruit flies is an x-linked, recessive trait. Which would most likely
result if a short-winged female mates with a long-winged male?
result if a short-winged female mates with a long-winged male?
a)
All offspring will be short-winged.
b)
All females will be long-winged, and all males will be short-winged.
c)
All females will be short-winged, and all males will be long-winged.
d)
Half of the males and females will be short-winged, and half will be long-winged.
2.
A parent with Type A blood and a parent with Type O blood have a child. Which of the following is a possible genotype of their offspring?
a)
I A I A
b)
I A i
c)
I b i
d)
ii
3.
Which term is correctly matched with the description?
a)
Co-dominance occurs when two traits blend together to form a new phenotype.
b)
Human skin color is an example of codominant trait.
c)
Incomplete dominance occurs when traits blend producing a third phenotype.
d)
Human blood type is not an example of multiple alleles.
4.
Colorblindness is a sex-linked recessive trait. A mother with normal color-vision and a colorblind father have a
color-blind daughter. Which of the following statements is correct?
color-blind daughter. Which of the following statements is correct?
a)
All of their daughters will be colorblind
b)
The mother is a carrier of the colorblindness gene
c)
All of their sons will have normal color vision
d)
All of their sons will be colorblind.
5.
Which disease most likely occurs after excessive exposure to ultraviolet radiation?
a)
Malaria
b)
Asthma
c)
Skin Cancer
d)
Polio
6.
This is a pedigree for a recessive genetic disorder.
What is the genotype of the person in III-2?
What is the genotype of the person in III-2?
a)
HH
b)
Hh
c)
hh
d)
XY
7.
Which genetic abnormality can be identified through karyotyping?
a)
Point mutation
b)
Recessive allele
c)
Extra chromosome
d)
Sex-linked allele
8.
A couple has five children, all with
blood type A. The mother’s blood type
is O, and the father’s blood type is A.
Based on this information, which
describes the most probable genotype
of the father?
blood type A. The mother’s blood type
is O, and the father’s blood type is A.
Based on this information, which
describes the most probable genotype
of the father?
a)
diploid
b)
haploid
c)
heterozygous
d)
homozygous
9.
In a certain fish, blue (FB) scales and red (FR) scales are codominant. When a fish has the genotype FBFR, it has a patchwork of blue and red scales. Cross two heterozygous. What are the chances of an offspring being patchwork?
a)
1 out of 4 or 25%
b)
2 out of 4 or 50%
c)
3 out of 4 or 75%
d)
4 out of 4 or 100%
10.
Colorblindness is a recessive, X chromosome sex-link disorder. Cross the parents to figure out which percentage of their offspring will be colorblind.
a)
25%
b)
0%
c)
75%
d)
50%
11.
Mendel's Law of ______ states that alleles separate from each other during the formation of games.
a)
segregation
b)
independent assortment
c)
dominance
d)
conservation of mass
12.
What is the gender of individual #1 of the first generation?
a)
male
b)
female
13.
Which statement is true about this karyotype?
a)
this person is normal
b)
this person is missing chromosome pair 23
c)
this person is missing an X chromosome
d)
this person has defective chromosomes
14.
What is the haploid number for this Karyotype?
a)
26
b)
27
c)
52
d)
54
15.
Which genetic abnormality is shown in this karyotype?
a)
Partial Addition
b)
Partial Deletion
c)
Trisomoy
d)
Monosomy
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