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Genetics, Genetic Engineering, And Genetic Disorders And Technology Part 1 Of 2
Test Description: Review for Life Science Spring 2014 Final
Instructions: Answer all questions to get your test result.
1) 1. Which term best describes the purpose of a Punnett square?
A
predict
B
conclude
C
analyze
D
test
2) 2. An organism's _____ is its combination of alleles.
A
none of the above
B
DNA
C
heredity
D
genotype
3) 3. Joseph expresses a recessive phenotype for red hair. What is the best prediction regarding his genotype?
A
He has a homozygous genotype for hair color.
B
He has a genotype for hair color with two different alleles.
C
He is heterozygous for hair color.
D
He has four different alleles for hair type.
4) 4. The blue flowers that a plant inherits from its parents are an example of a
A
sex-linked disease
B
trait
C
mutation
D
dihybrid cross
5) 5. Most of what we know today about ____ is based on Mendel's research.
A
microscopes
B
genetic engineering
C
asexual reproduction
D
cancer treatment
6) 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 brown eyes.
D
The individual has eye color that is a mix of brown and blue.
7) 7. A red parent flower and a white parent flower produced a pink offspring flower. This is most likely an example of
A
codominance
B
incomplete dominance
C
polygenic inheritance
D
multiple alleles
8) 8. Which of these is an example of a phenotype?
A
yellow flower color
B
a gene that dictates how big someone's nose will be
C
two identical alleles for nose size
D
an allele for yellow flower color within a flower's genome
9) 9. 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
10) 10. Suppose S represents a smooth pea and s represents a wrinkled pea. Which of the following represents a pea that is heterozygous for pea texture?
A
ss
B
Ss
C
all of the above
D
SS
11) 11. The primary goal of gene therapy is to give a patient
A
new, normal reproductive organs
B
a new, normal cell nucleus
C
a new, normal single chromosome
D
a new, normal single gene
12) 12. What are the chances of a father passing a Y-linked disorder to his son?
A
100 percent
B
50 percent
C
75 percent
D
25 percent
13) 13. An autosomal dominant disorder requires ____ in order to affect an individual.
A
a combination of sex-linked and environmental factors
B
two copies of a mutated gene
C
one copy of a mutated gene
D
a combination of genetic and environmental factors
14) 14. Imagine a scenario in which an X-linked disorder requires two copies of the mutated gene to be present. Which of the following is true?
A
Only men will be affected.
B
Only women will be affected.
C
Women will be more likely to be affected, although some men will be affected too.
D
Men and women will be equally likely to be affected.
*select an answer for all questions
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