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Life Science Spring 2015 Final Pt. 5 Of 5
Test Description: Genetics Pt. 2
Instructions: Answer all questions to get your test result.
1) How many parents contribute genes to an offspring during asexual reproduction?
A
1
B
3
C
2
D
0
2) Trisomy on chromosome 21 results in
A
Down syndrome
B
a sex genotype of XXY
C
a cleft palate and serious brain defects
D
Patau syndrome
3) Which term best describes the purpose of a Punnett square?
A
test
B
analyze
C
conclude
D
predict
4) Which of the following is the best example of codominance?
A
a mouse with a dominant allele for fur color
B
a plant with an allele for small leaves and an allele for red flowers
C
a cat with an allele for a long tail
D
a person with AB blood type
5) If a cow contains two codominant alleles—one for white hide color and one for red hide color—what would the cow's hide probably look like?
A
red
B
white
C
orange
D
patches of white and patches of red
6) If a person has a dominant allele for brown eyes and a recessive allele for blue eyes, which statement is correct?
A
Eye color cannot be determined based on the given information.
B
The individual has blue eyes.
C
The individual has eye color that is a mix of brown and blue.
D
The individual has brown eyes.
7) Which statement is correct regarding a person who expresses a recessive trait?
A
None of the statements are correct.
B
She has two recessive alleles for the trait.
C
She has one dominant allele for the trait.
D
She has one recessive allele for the trait.
8) An organism's phenotype is best described as its
A
physical appearance
B
number of alleles
C
number of chromosomes
D
genetic heredity
9) A red parent flower and a white parent flower produced a pink offspring flower. This is most likely an example of
A
incomplete dominance
B
multiple alleles
C
polygenic inheritance
D
codominance
10) A student studying inheritance patterns drew a monohybrid cross showing each parent with the Ww genotype. What are the chances that the offspring will be homozygous?
A
2 out of 4
B
3 out of 4
C
4 out of 4
D
1 out of 4
*select an answer for all questions
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