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BIO 340 PRACTICE FINAL EXAM MULTIPLE QUESTIONS CORRECTLY ANSWERED 100% VERIFIED
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BIO 340 PRACTICE FINAL EXAM MULTIPLE QUESTIONS CORRECTLY ANSWERED 100% VERIFIED
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BIO 340 PRACTICE FINAL EXAM MULTIPLEQUESTIONS CORRECTLY ANSWERED 100%
VERIFIED.
Single Nucleotide Polymorphisms (SNPs) associated with phenotypes can
be found in what regions of the genome?
A. Introns
B. Enhancers
C. Exons
D. Intergenic regions
E. All of the above
Verified Answer -E. All of the above
Two women who are the same height have the same genotypes at the
strongest height-associated loci.
A. True
B. False
Verified Answer -B. False
You find variation in yield per plant in a field of genetically uniform (clonal)
corn. You take samples from corn with the largest yield and make crosses.
What yield do you expect to find in the offspring of these crosses?
,A. Substantially more average yield compared to the average of the previous
population
B. A little improvement in the average yield compared to the average of the
previous population
C. The same average yield of the previous population
D. I cannot tell
Verified Answer -C. The same average yield of the previous population
A population of mice has two color morphs: white and agouti. The difference
is due to a single gene with two alleles; agouti is dominant over white. In the
population, the frequency of the agouti allele is 0.4 and that of the white
allele is 0.6. In a population of 50 mice, how many are heterozygotes for this
gene?
A. 0.48
B. 48
C. 50
D. 24
E. None
Verified Answer -D. 24
A population of flies is polymorphic for gene A. The gene has two alleles, A
and a. The population is made up of the following genotypes: AA(0.2),
Aa(0.2), aa(0.6). Is this population in Hardy-Weinberg equilibrium?
A. Yes
,B. No
Verified Answer -B. No
In a population of vampire bats, the gene for bloodsucking (S) has two
alleles with the following relative fitness values. This locus will be subject to
________.
Genotype: S1S1 S1S2 S2S2
Relative fitness: 0.75 1 0.5
A. Directional selection towards the S1S1 allele
B. Stabilizing selection
C. Directional selection towards the S2S2 allele
D. Directional selection towards the S1S2 allele
E. Heterozygote advantage
Verified Answer -B. Stabilizing selection and
E. Heterozygote advantage
All cells in the human body are constantly replicating.
A. True
B. False
Verified Answer -B. False
Which phase of the cell cycle includes DNA replication?
, A. Anaphase
B. G1 phase
C. S phase
D. M phase
Verified Answer -C. S phase
What type of cell division generates a cell with only half of the complete
genome?
A. Mitosis
B. Meiosis
C. Neither mitosis or meiosis
D. Both mitosis and meiosis
Verified Answer -B. Meiosis
Oogenesis differs from spermatogenesis in which way(s):
A. Meiosis occurs in oogenesis but not in spermatogenesis
B. In oogenesis cells resulting from meiosis I and II often differ in size
C. Oogenesis is not a continuous cycle
D. Both B and C
Verified Answer -D. Both B and C
The __________ can be used to find the likelihood that any number of
independent events will occur together.
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