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Bio 182 Exam 2 ASU Latest Update Actual Exam 250 Questions and 100% Verified Correct Answers Guaranteed A+ Approved by the Professor $25.49   Add to cart

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Bio 182 Exam 2 ASU Latest Update Actual Exam 250 Questions and 100% Verified Correct Answers Guaranteed A+ Approved by the Professor

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Bio 182 Exam 2 ASU Latest Update Actual Exam 250 Questions and 100% Verified Correct Answers Guaranteed A+ Approved by the Professor

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  • September 23, 2024
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Bio 182 Exam 2 ASU Latest Update 2024-2025
Actual Exam 250 Questions and 100% Verified
Correct Answers Guaranteed A+ Approved by
the Professor

abiotic - CORRECT ANSWER: physical conditions


adaptive plasticity - CORRECT ANSWER: one genotype has multiple phenotypes &
environments trigger change


allopatry - CORRECT ANSWER: populations occur in different places


biological species - CORRECT ANSWER: group of potentially interbreeding species


biotic - CORRECT ANSWER: other organisms


Cladistics - CORRECT ANSWER: Grouping is based on common ancestry


Do enzymes maintain a rigid structure while catalyzing? - CORRECT ANSWER: No it is
constantly changing


Do smaller or larger populations have more chance for genetic drift? - CORRECT
ANSWER: Smaller populations


Each nucleotide represents? - CORRECT ANSWER: the state of a single trait


Environmental examples - CORRECT ANSWER: air temp
food availability
social group

,evolutionary species - CORRECT ANSWER: lineage that remains distinct throughout
space & time


Fisher's Model - CORRECT ANSWER: Assume:
Each set of parents give birth to two offspring.
A new allele (a) arises, which has no effect on fitness
(fitness of Aa = fitness of AA).
Fisher 1930,
The Genetical Theory of Natural Selection
Then:
Within each couple, there is a 25% chance the new
allele will be lost during reproduction.


Gene flow - CORRECT ANSWER: dispersal of organisms btw genetically distinct
populations


genetic drift - CORRECT ANSWER: evolution caused by random processes in
population in a population of finite size


Genetic drift can do what to neutral alleles - CORRECT ANSWER: eliminate & spread


Genetic drift can...? - CORRECT ANSWER: -eliminate neutral alleles.
-spread neutral alleles.
-eliminate beneficial alleles


high temps - CORRECT ANSWER: more rigid enzymes


homology - CORRECT ANSWER: phenotype that is similar between two species
because of common ancestry

,homoplasy - CORRECT ANSWER: phenotype that is similar between two species
because of convergent evolution


How can sympatric populations evolve reproductive isolation? - CORRECT ANSWER:
not very easily


How can we quantify gene flow? - CORRECT ANSWER: Estimate genetic variances


How do we know evolutionary relationships among species? - CORRECT ANSWER:
We don't. But we can generate hypotheses


Influx of beneficial alleles? - CORRECT ANSWER: Speeds adaptation


Influx of deleterious alleles? - CORRECT ANSWER: Slows adaptation


Is fixation of a deleterious allele or the loss of a beneficial allele more probable? -
CORRECT ANSWER: Loss of a beneficial allele


low temps - CORRECT ANSWER: more flexible enzymes


migration load - CORRECT ANSWER: maintenance of deleterious alleles by migration


niche - CORRECT ANSWER: range of environmental conditions in which a genotype
can persist


Organisms such as the Antarctic fish can live at extremely low temperatures. Which
mechanism best describes how they do this?
they modify their proteins to be more flexible. - CORRECT ANSWER: Modify their
proteins to be more flexible

, outgroup - CORRECT ANSWER: species closely related to the in-group but less closely
related than of those in the in-group


parsimony - CORRECT ANSWER: the simplest explanation is the best (fewest
evolutionary transitions) A-->B-->C = common A-->B-->A = uncommon


Phenetics - CORRECT ANSWER: Grouping is based on phenotypic similarity


Phenotypic (3 examples) - CORRECT ANSWER: isolation
energy stores
hydration


phylogeny - CORRECT ANSWER: pattern of lineage produced by speciation


Phylogeny depends on? - CORRECT ANSWER: The gene


plasticity - CORRECT ANSWER: ability of one genotype to produce more than one
phenotype when exposed to different environments


Random processes can...? - CORRECT ANSWER: Spread neutral alleles or eliminate
beneficial alleles


Species - CORRECT ANSWER: group that shares specific properties


Stress is any environmental factor that impairs performance. (5 examples) - CORRECT
ANSWER: pH
light
pressure
moisture
temperature

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