ASU BIO 340 Holechek Exam 2.pdf file:///C:/Users/HP/Desktop/New%20Conver/ASU%20BIO%20340%
ASU BIO 340 Holechek Exam 2
1. Name something from this module (III) that can be affected by interactions with other
genes(not always but can be).
ANS Gene Expression
2. What ultimately dictates which phenotype is expressed?
ANS Protein Product
3. The overall consequence of the activites of the protein produce the
ANS -
Phenotype
4. What type of mutation would cause a gene to lose some OR all of its normal function?
ANS Loss of function
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5. What type of mutation would cause a gene to lose only some of its func- tion?
ANS Hypomorphic
6. What type of mutation causes a gene to lose ALL of it's function?
ANS Null
7. If one copy is sufficient enough to produce the wild type then, what type of allele is
that?
ANS Haplosufficient
8. If both copies of an allele are needed to produce the wild type then what type of
allele would that be?
ANS Haploinsufficient
9. What type of mutation sees the gene acquired deliver a new function or
expression?
ANS Gain of function
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10. What type of mutation sees a decrease or loss of expression or function as it relates
to a gene?
ANS Loss of Function
11. Situation in which one allele is not completely dominant over another allele an example
may be color or size where the allele is not entirely expressed when mixed with a
different allele.
ANS incomplete dominance
12. Both alleles (even though they are different) are expressed completely. Holechek's
favorite example here is blood type.
ANS Codominance
13. In an example of red flowers are bred with white flowers and
produce pink flowers.
ANS Incomplete dominance
14. In an example of An individual who receives the allele for sickle cell
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anemia from one parent and the allele for healthy erythrocytes from the other parent
displays a in between erythrocyte that while not as efficient with it's hemoglobin enables
one to stave off malaria.
ANS Codominance
15. According to the allelic series of the c gene what allele enzyme can be temperature
sensitive?
ANS Coat Color
16. method of discovering whether two mutations are in the same or separate genes
ANS Complementation test
17. If two mutant parents are to produce a wild type in their progeny then do the
mutation complement each other?
ANS Yes
18. In one example two alleles are on separate genes and a certain phenotype is expressed.
In the next generation however, the offspring has both alleles on the same gene and the
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