BIO 340 Holechek Exam Two |2025 EXAM QUESTIONS |FREQUENTLY TE
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
1. Name something from this module (III) Gene Expression
that can be affected by interactions with
other genes(not always but can be).
2. What ultimately dictates which phenotype Protein Product
is expressed?
3. The overall consequence of the activites of Phenotype
the protein produce the ____
4. What type of mutation would cause a gene Loss of function
to lose some OR all of its normal function?
5. What type of mutation would cause a gene Hypomorphic
to lose only some of its function?
6. What type of mutation causes a gene to Null
lose ALL of it's function?
7. If one copy is sufficient enough to produce Haplosufficient
the wild type then, what type of allele is
that?
8. If both copies of an allele are needed to Haploinsufficient
produce the wild type then what type of
allele would that be?
9. What type of mutation sees the gene ac- Gain of function
quired deliver a new function or expres-
sion?
10. Loss of Function
, BIO 340 Holechek Exam Two |2025 EXAM QUESTIONS |FREQUENTLY TE
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
What type of mutation sees a decrease or
loss of expression or function as it relates
to a gene?
11. Situation in which one allele is not com- incomplete dominance
pletely dominant over another allele an ex-
ample may be color or size where the allele
is not entirely expressed when mixed with
a different allele.
12. Both alleles (even though they are differ- Codominance
ent) are expressed completely. Holechek's
favorite example here is blood type.
13. In an example of ____ ____ red flowers are Incomplete dominance
bred with white flowers and produce pink
flowers.
14. In an example of ____ ____ An individual Codominance
who receives the allele for sickle cell ane-
mia from one parent and the allele for
healthy erythrocytes from the other par-
ent displays a in between erythrocyte that
while not as efficient with it's hemoglobin
enables one to stave off malaria.
15. According to the allelic series of the c gene Coat Color
what allele enzyme can be temperature
sensitive?
16. method of discovering whether two muta- Complementation test
tions are in the same or separate genes
, BIO 340 Holechek Exam Two |2025 EXAM QUESTIONS |FREQUENTLY TE
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
17. If two mutant parents are to produce a wild Yes
type in their progeny then do the mutation
complement each other?
18. In one example two alleles are on sepa- Complementation
rate genes and a certain phenotype is ex-
pressed. In the next generation however,
the offspring has both alleles on the same
gene and the phenotype is no longer ex-
pressed. What is this an example of?
19. Gene interaction occurs when two or more epistatic
genes affect the same phenotype. What
type of interaction is this?
20. What ratio indicates two genes interacting 9:7
in the same pathway?
Hint: non-mendelian
21. What type of interaction would see a 15:1 Duplicate Gene
ratio?
22. genes in a redundant system have a duplicate gene
23. Dominant gene interaction has what ratio 9:6:1
in their offspring?
24. one or two dominant alleles for just one of Dominant Gene Interaction
either of the genes (pumpkin example)
25. Usually describes a type of hypothesis that null hypothesis
states nothing happened. For the pur-
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
1. Name something from this module (III) Gene Expression
that can be affected by interactions with
other genes(not always but can be).
2. What ultimately dictates which phenotype Protein Product
is expressed?
3. The overall consequence of the activites of Phenotype
the protein produce the ____
4. What type of mutation would cause a gene Loss of function
to lose some OR all of its normal function?
5. What type of mutation would cause a gene Hypomorphic
to lose only some of its function?
6. What type of mutation causes a gene to Null
lose ALL of it's function?
7. If one copy is sufficient enough to produce Haplosufficient
the wild type then, what type of allele is
that?
8. If both copies of an allele are needed to Haploinsufficient
produce the wild type then what type of
allele would that be?
9. What type of mutation sees the gene ac- Gain of function
quired deliver a new function or expres-
sion?
10. Loss of Function
, BIO 340 Holechek Exam Two |2025 EXAM QUESTIONS |FREQUENTLY TE
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
What type of mutation sees a decrease or
loss of expression or function as it relates
to a gene?
11. Situation in which one allele is not com- incomplete dominance
pletely dominant over another allele an ex-
ample may be color or size where the allele
is not entirely expressed when mixed with
a different allele.
12. Both alleles (even though they are differ- Codominance
ent) are expressed completely. Holechek's
favorite example here is blood type.
13. In an example of ____ ____ red flowers are Incomplete dominance
bred with white flowers and produce pink
flowers.
14. In an example of ____ ____ An individual Codominance
who receives the allele for sickle cell ane-
mia from one parent and the allele for
healthy erythrocytes from the other par-
ent displays a in between erythrocyte that
while not as efficient with it's hemoglobin
enables one to stave off malaria.
15. According to the allelic series of the c gene Coat Color
what allele enzyme can be temperature
sensitive?
16. method of discovering whether two muta- Complementation test
tions are in the same or separate genes
, BIO 340 Holechek Exam Two |2025 EXAM QUESTIONS |FREQUENTLY TE
ED QUESTIONS ||VERIFIED SOLUTIONS (100% CORRECT)
17. If two mutant parents are to produce a wild Yes
type in their progeny then do the mutation
complement each other?
18. In one example two alleles are on sepa- Complementation
rate genes and a certain phenotype is ex-
pressed. In the next generation however,
the offspring has both alleles on the same
gene and the phenotype is no longer ex-
pressed. What is this an example of?
19. Gene interaction occurs when two or more epistatic
genes affect the same phenotype. What
type of interaction is this?
20. What ratio indicates two genes interacting 9:7
in the same pathway?
Hint: non-mendelian
21. What type of interaction would see a 15:1 Duplicate Gene
ratio?
22. genes in a redundant system have a duplicate gene
23. Dominant gene interaction has what ratio 9:6:1
in their offspring?
24. one or two dominant alleles for just one of Dominant Gene Interaction
either of the genes (pumpkin example)
25. Usually describes a type of hypothesis that null hypothesis
states nothing happened. For the pur-
