BIO 152 EXAM 1 WITH CORRECT
ANSWERS 2025
Number of complex multicellular organisms has increased over
the last billion years.
A. True
B. False correct answers >> A
Natural selection would favor more complex organisms.
A. True
B. False correct answers >> B
What does OD measure?
A. Ecoli can survive on citrate alone
B. Amount of bacteria in solution as measured by diffracted light
C. How well each generation metabolizes glucose
D. Rate of bacterial growth correct answers >> B
Why did it take so many generations for the ecoli to be able to
grow on citrate?
A. B/c ecoli grows much more slowly on citrate
B. Needed to use up glucose first
C. B/c mutations are random & just need to happen
D. B/c citrate very complicated molecule correct answers >>
C
,Would cit+ ecoli grow better in a citrate only medium or a high
glucose medium?
A. Citrate only
B. Glucose only
C. You'd have to do the experiment correct answers >> A
Training at high altitude increasing hemoglobin in a cyclist's
blood.
A. Acclimatization
B. Adaptation correct answers >> A
Big ears of long eared jerboa help it radiate heat in the desert.
A. Acclimatization
B. Adaptation correct answers >> B
Mutation allowing ecoli to metabolize citrate occurred b/c ecoli
were growing on citrate.
A. True
B. False correct answers >> B
Why are there still bacteria?
A.
B/c disease causing organisms serve a role in nature
B. Necessary for eukaryotes to survive
C. Nothing has out competed them correct answers >> C
, The 'Drunkard's Walk' refers to:
A. Random changes that underlie evolution
B. How organisms develop correct answers >> A
What does the OD tell us about the Ecoli?
A. How many bacteria there are in solution
B. How many generations of ecoli have elapsed
C. Ability of ecoli to use citrate
D. Whether ecoli are myopic correct answers >> A
Did the ecoli adapt or acclimate to their environment?
A. Adapt
B. Acclimate correct answers >> A
What is represented by the node?
A. New mutation
B. New genetic variant
C. Common ancestor correct answers >> C
All the alleles of all the genes present in all individuals in a
species are referred to as the _ of that species.
A. Gene pool
B. Allele frequency
C. Genotype frequency correct answers >> A
ANSWERS 2025
Number of complex multicellular organisms has increased over
the last billion years.
A. True
B. False correct answers >> A
Natural selection would favor more complex organisms.
A. True
B. False correct answers >> B
What does OD measure?
A. Ecoli can survive on citrate alone
B. Amount of bacteria in solution as measured by diffracted light
C. How well each generation metabolizes glucose
D. Rate of bacterial growth correct answers >> B
Why did it take so many generations for the ecoli to be able to
grow on citrate?
A. B/c ecoli grows much more slowly on citrate
B. Needed to use up glucose first
C. B/c mutations are random & just need to happen
D. B/c citrate very complicated molecule correct answers >>
C
,Would cit+ ecoli grow better in a citrate only medium or a high
glucose medium?
A. Citrate only
B. Glucose only
C. You'd have to do the experiment correct answers >> A
Training at high altitude increasing hemoglobin in a cyclist's
blood.
A. Acclimatization
B. Adaptation correct answers >> A
Big ears of long eared jerboa help it radiate heat in the desert.
A. Acclimatization
B. Adaptation correct answers >> B
Mutation allowing ecoli to metabolize citrate occurred b/c ecoli
were growing on citrate.
A. True
B. False correct answers >> B
Why are there still bacteria?
A.
B/c disease causing organisms serve a role in nature
B. Necessary for eukaryotes to survive
C. Nothing has out competed them correct answers >> C
, The 'Drunkard's Walk' refers to:
A. Random changes that underlie evolution
B. How organisms develop correct answers >> A
What does the OD tell us about the Ecoli?
A. How many bacteria there are in solution
B. How many generations of ecoli have elapsed
C. Ability of ecoli to use citrate
D. Whether ecoli are myopic correct answers >> A
Did the ecoli adapt or acclimate to their environment?
A. Adapt
B. Acclimate correct answers >> A
What is represented by the node?
A. New mutation
B. New genetic variant
C. Common ancestor correct answers >> C
All the alleles of all the genes present in all individuals in a
species are referred to as the _ of that species.
A. Gene pool
B. Allele frequency
C. Genotype frequency correct answers >> A
