Biology 251 - Genetics » Spring 2021 » Topic 5.2 Quiz
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 251 - Genetics ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
When two genes control a single characteristic like fruit color, a dihybrid cross with parents that are homozygous recessive or homozygous dominant will generate progeny in the F2 generation that have a _____________ phenotypic ratio.
A.
1:02:01
B.
3:01
C.
9:3:3:1
D.
1:01
Question #2
When two genes control a single characteristic, a dihybrid cross with parents that are homozygous recessive or homozygous dominant that generates progeny in the F2 generation that have a 9:4:3 phenotypic ratio are demonstrating __________.
A.
incomplete dominance.
B.
a simple gene interaction.
C.
dominant epistasis.
D.
codominance.
E.
recessive epistasis.
Question #3
When a mutant phenotype that occurs in two different individuals results from mutant alleles from two different genes, it is possible to produce wild-type offspring from a mating due to _____________.
A.
complementation
B.
expressivity
C.
epistasis
D.
incomplete penetrance
E.
dominance
Question #4
A genetoype that could demonstrate the phenomenon of recessive epistasis would be:
A.
AAbb
B.
aa
C.
Aa
D.
bb
E.
AaBb
F.
AABb
Question #5
A gene that masks the phenotype of another gene is a ___________ gene.
A.
dominant
B.
epigenetic
C.
recessive
D.
hypostatic
E.
epistatic
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 251 - Genetics ] course for $25 USD.
Existing Quiz Clients Login here