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Genetics – Goal 3.03
Assessment Form A
Name: __________________
Objective 3.03: Students will interpret and predict patterns of inheritance, including traits, multiple alleles, polygenic
traits, sex-linked traits, independent assortment, test cross, pedigrees, and Punnett squares.
1. Gregor Mendel concluded that traits are
A. Not inherited by offspring
B. Inherited through the passing of factors from
parents to offspring
C. Determined by dominant factors only
D. Determined by recessive factors only
2. When pure black hamsters were mated with pure
white hamsters, all of the offspring were black. The
trait for whiteness would best be described as
A. Dominant
C. Sex linked
B. Recessive
D. Hybrid
8. Huntington’s disease is a dominant trait. What are
the chances that a child will develop Huntington’s
disease if one parent is heterozygous and the other is
homozygous dominant for the disease?
A. 1 out of 4
B. 2 out of 4
C. 3 out of 4
D. 4 out of 4
9. Use the Karyotype below to answer the following
questions :
3. In guinea pigs, black fur color is dominant and
brown fur color is recessive. Several matings
between the same male black guinea pig and female
brown guinea pig produce a total of 30 black guinea
pigs and no brown guinea pigs. What are the
genotypes of the parents?
A. BB x bb
B. BB x BB
C. Bb x Bb
D. Bb x bb
4. After performing amniocentesis, which analysis is
most often used to determine the chromosomal
condition of a developing fetus?
A. blood type
C. Pedigree
B. DNA sequence
D. Karyotype
5. Variation in human skin color is an example of
A. incomplete dominance
B. co-dominance
C. polygenic traits
D. multiple alleles
6. In genetics research, what is the purpose of a test
cross?
A. to determine the phenotypes of the parents
B. to determine the genotypes of the parents
C. to determine whether parents could mate
D. to determine how many offspring can be
produced by two parents
7. Which of the following genotypes result in the same
phenotype?
A. IAIA and IAIB
C. IBIB and IAIB
B B
B
B. I I and I i
D. IBi and ii
This individual is a
A. Male with Klinefelter’s Syndrome
B. Female with Down’s Syndrome
C. Male with Down’s Syndrome
D. Female with Turner’s Syndrome
10. 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?
A. diploid
B. haploid
C. Heterozygous
D. Homozygous
11. Hemophilia is a sex-linked recessive trait. What
would be the probability that a male with hemophilia
and a normal female (not a carrier) would have a son
with hemophilia?
A. 100%
C. 50%
B. 75%
D. 0%
12. In primroses, the combined expression of the allele
for white flowers and the allele for red flowers produces
a new phenotype that is pink. This illustrates incomplete
dominance. Which of the following would be the
correct product from a cross between a white primrose
and a heterozygous pink primrose?
A. 2 red, 1 pink, 1 white
B. 1 red, 2 pink, 1 white
C. 1 red, 1 pink, 2 white
D. 2 pink, 2 white
13. A karyotype of a human female shows that she has
only one sex chromosome. Which is this disorder called?
A. Turner’s Syndrome
B. Klienfelter’s Syndrome
C. PKU
D. Hemophilia
14. In a genetics laboratory, two heterozygous tall plants
are crossed. If tall is dominant over short, what are the
expected phenotypic results?
A.
B.
C.
D.
100% tall
75% tall, 25% short
50% tall, 50% short
25% tall, 75% short
15. When considering sickle cell anemia, the
heterozygous condition (Cc) results in resistance to
malaria. If two heterozygous parents have a child, what
are the chances of that child being resistant to malaria
but not having sickle cell anemia (cc)?
A.
B.
C.
D.
25%
50%
75%
100%
16. A student has cystic fibrosis, a genetic condition
caused by the presence of a homozygous recessive gene.
What could be her parent’s genotypes for the cystic
fibrosis trait?
A. Her father is homozygous dominant; her mother is
homozygous recessive.
B. Her father is heterozygous; her mother is
homozygous dominant.
C. Her father is homozygous dominant; her mother is
homozygous dominant.
D. Her father is heterozygous; her mother is
homozygous recessive.
17. Gregor Mendel, the Father of Genetics, worked with
pea plants to study genetics. He saw that yellow seed
color is dominant to green seed color. If Mendel crossed
a heterozygous pea plant with a plant that is recessive for
seed color, what is the probability (%) that the offspring
will have green seeds?
A. 0%
B. 25%
C. 50%
D. 100%
18. A red cow is mated with a white cow, and they
produce a roan cow. Roan cows are red with white
splotches. Which statement best explains this
phenomenon.
A. Roan color is the result of incomplete dominance.
B. Roan color is produced by a blending of red and
white to make an intermediate trait.
C. Red and white are codominant alleles each
producing the protein pigment for red and white
coat color.
D. Red is not completely dominant over white so the
two mix together.
19. Curly hair (C) is dominant to straight hair (c). A
cross between two individuals is shown in the Punnett
square below. What must the genotype of the parents be
to produce the results shown?
CC Cc
CC Cc
A.
B.
C.
D.
homozygous dominant x homozygous dominant
homozygous dominant x heterozygous
homozygous recessive x homozygous dominant
heterozygous x heterozygous
20. Plants inherit genes that enable them to produce
chlorophyll, but this pigment is not produced unless the
plants are exposed to light. This is an example of
A. how the environment can influence the expression of
a genetic trait
B. how the environment can cause mutations to occur
C. the appearance of a new species
D. how genes affect one plant species, but not another
21. The female in the second generation must be—
A.
B.
C.
D.
normal because her daughter is normal
normal because the majority of her children are normal
a carrier because one of her sons is colorblind
colorblind because her mother was a carrier
22. This pedigree shows a sex-linked recessive trait over three generations in a family. If individual 6 has a daughter,
what will be her phenotype?
E. Normal
F. Carrier
C. Affected
D. Either affected or a carrier
Rewind Your Mind!
DNA  GGG ATC CAC GAC TTA AAC
23. The complementary strand of DNA would be:
a. CCC TAG GTG CTG AAT TTG
b. CCC TAG GTG
c. CCC UAG GUG CUG AAU UUG
d. CCC UAG GUG CUG
24. After transcription the result would be:
a. CCC TAG GTG CTG AAT TTG
b. CCC TAG GTG
c. CCC UAG GUG CUG AAU UUG
d. CCC UAG GUG CUG
25. The diagram below represents a cell in water.
Molecules that can move freely across the
membrane are shown. Some molecules are located
inside the cell and others in the water outside the
cell.
28. Sodium ions are "pumped" from a region of lower
concentration to a region of higher concentration in
the nerve cells of humans using energy. This process
is an example of
A. Diffusion
C. Active transport
B. Osmosis
D. Passive transport
29. Cellular respiration is carried out by which of the
following?
A. All living organisms all of the time
B. Animals but not plants
C. Animals all of the time but plants only at night
D. Heterotrophs but not autotrophs
A.
B.
C.
D.
Based on the distribution of these molecules,
what would most likely happen after a period of
time?
The concentration of O2 molecules will increase
inside the cell
The concentration CO2 will remain the same
inside the cell
The concentration of O2 will remain the same
outside the cell
The concentration of CO2 will decrease outside
the cell
26. Which row in the chart best describes the active
transport of Molecule X across a cell membrane?
30. The diagram below represents some events that take
place in a plant cell.
In which organelle would these events most likely
occur?
A. Nucleus
C. Ribosome
B. Chloroplast
D. Mitochondria
31. Most of the oxygen in the atmosphere results from
the process of
A. Fermentation
C. Respiration
B. Photosynthesis
D. Excretion
A. Row 1
B. Row 2
C. Row 3
D. Row 4
27. Particles move with the concentration gradient in
which of the following?
I.
Diffusion
III. Facilitated diffusion
II.
Osmosis
IV. Active transport
A. I only
B. II only
C. III and IV only
D. I, II, and III only
32.
A.
B.
C.
D.
In photosynthesis, chlorophyll functions in changing
Glucose molecules to starch
Water and carbon dioxide to sugar
Light energy to chemical bond energy
Hydrogen bonds to water
33. Which life function is primarily involved in
converting energy stored in organic molecules into a
form directly useable by an organism?
A. Absorption
B. Synthesis
C. Regulation
D. Respiration