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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
0
B
2
C
3
D
1
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
conclude
B
analyze
C
predict
D
test
4) Which of the following is the best example of codominance?
A
a person with AB blood type
B
a cat with an allele for a long tail
C
a plant with an allele for small leaves and an allele for red flowers
D
a mouse with a dominant allele for fur color
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
white
B
orange
C
patches of white and patches of red
D
red
6) If a person has a dominant allele for brown eyes and a recessive allele for blue eyes, which statement is correct?
A
The individual has brown eyes.
B
Eye color cannot be determined based on the given information.
C
The individual has blue eyes.
D
The individual has eye color that is a mix of brown and blue.
7) Which statement is correct regarding a person who expresses a recessive trait?
A
She has one recessive allele for the trait.
B
She has two recessive alleles for the trait.
C
None of the statements are correct.
D
She has one dominant allele for the trait.
8) An organism's phenotype is best described as its
A
number of alleles
B
genetic heredity
C
physical appearance
D
number of chromosomes
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
codominance
C
multiple alleles
D
polygenic inheritance
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
3 out of 4
B
1 out of 4
C
2 out of 4
D
4 out of 4
*select an answer for all questions
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