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BIO 340 Holechek Exam Two Questions and Complete Solutions Graded A+
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BIO 340 Holechek Exam Two Questions and Complete Solutions Graded A+
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BIO 340 HolechekExam Two
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
,Gene Expression - Correct Ans: Name something from this module (III) that can be affected by
interactions with other genes(not always but can be).
Protein Product - Correct Ans: What ultimately dictates which phenotype is expressed?
Phenotype - Correct Ans: The overall consequence of the activites of the protein produce the ____
Loss of function - Correct Ans: What type of mutation would cause a gene to lose some OR all of its
normal function?
Hypomorphic - Correct Ans: What type of mutation would cause a gene to lose only some of its
function?
Null - Correct Ans: What type of mutation causes a gene to lose ALL of it's function?
Haplosufficient - Correct Ans: If one copy is sufficient enough to produce the wild type then, what type
of allele is that?
Haploinsufficient - Correct Ans: If both copies of an allele are needed to produce the wild type then
what type of allele would that be?
Gain of function - Correct Ans: What type of mutation sees the gene acquired deliver a new function or
expression?
Loss of Function - Correct Ans: What type of mutation sees a decrease or loss of expression or function
as it relates to a gene?
incomplete dominance - Correct Ans: 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.
, Codominance - Correct Ans: Both alleles (even though they are different) are expressed completely.
Holechek's favorite example here is blood type.
Incomplete dominance - Correct Ans: In an example of ____ ____ red flowers are bred with white
flowers and produce pink flowers.
Codominance - Correct Ans: In an example of ____ ____ An individual who receives the allele for sickle
cell 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.
Coat Color - Correct Ans: According to the allelic series of the c gene what allele enzyme can be
temperature sensitive?
Complementation test - Correct Ans: method of discovering whether two mutations are in the same or
separate genes
Yes - Correct Ans: If two mutant parents are to produce a wild type in their progeny then do the
mutation complement each other?
Complementation - Correct Ans: 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 phenotype is no longer expressed. What is this an example of?
epistatic - Correct Ans: Gene interaction occurs when two or more genes affect the same phenotype.
What type of interaction is this?
9:7 - Correct Ans: What ratio indicates two genes interacting in the same pathway?
Hint: non-mendelian
Duplicate Gene - Correct Ans: What type of interaction would see a 15:1 ratio?
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