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2024 BIO 1108 UCONN FINAL EXAM WITH CORRECT ANSWERS
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2024 BIO 1108 UCONN FINAL EXAM WITH CORRECT ANSWERS
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2024 BIO 1108 UCONN FINALEXAM WITH CORRECT
ANSWERS
_________ are much more variable than humans - CORRECT ANSWERS-fruit
flies
patterns of genetic variation can be described by ____________ - CORRECT
ANSWERS-allele frequencies
What can cause genetic variation? - CORRECT ANSWERS-a mutation
two types of mutations - CORRECT ANSWERS-somatic and germ line
mutations can be ___________ - CORRECT ANSWERS-deleterious, neutral, or
advantageous
Fruiting bodies are the structures we call ______________ or mold - CORRECT
ANSWERS-mushrooms
fungi have no _____ per se., the mating type is determined by a mating type
gene - CORRECT ANSWERS-sex
In this mutualism, the fungus gives the plant access to water and minerals,
and the plant gives the fungus sugars that it makes from photosynthesis -
CORRECT ANSWERS-glomeromycota
__________ are mutualistic associations between an ascomycete fungus and
agreenalga(orcyanobacterium) - CORRECT ANSWERS-lichens
genetic variation - CORRECT ANSWERS-refers to differences in DNA
sequences
recombination - CORRECT ANSWERS-gives new combinations not present in
the parent population
, allele frequency - CORRECT ANSWERS-# of copies of an allele / total # of
alleles in a population
What is the frequency of a in this population?
50% aa 25 % Aa 25% aa - CORRECT ANSWERS-62.5%
Evolution - CORRECT ANSWERS-a change in the frequency of alleles or
genotypes in a population over time
How do we measure "change" in the frequency of alleles or genotypes in a
population over time? (3 methods) - CORRECT ANSWERS-- observable
physical traits
- relative size of genes (gel electrophoresis)
- specific genetic code (DNA sequencing)
What is our baseline to compare against when determining if evolutionary
change is significant? - CORRECT ANSWERS-Hardy-Weinberg Equilibrium
Model
Conditions of HW Equilibrium (five) - CORRECT ANSWERS-- no differential
survival or reproductive success of individuals
- no migration
- no mutation
- large population size
- no mate choice
Natural Selection leads to __________ , which enhance the fit between an
organism and its environment - CORRECT ANSWERS-adaptations
Natural selection can be ___________, ____________, or _____________ - CORRECT
ANSWERS-positive, negative, or balancing
natural selection - CORRECT ANSWERS-the change in an allele's frequency
over time based on that particular allele's impact on survival and
reproduction
Natural selection occurs when individuals with certain traits ____________
________ ____________ than do individuals without those traits. - CORRECT
ANSWERS-produce more offspring
heterozygote advantage - CORRECT ANSWERS-case where the fitness of the
heterozygote is superior to that of the homozygote
3 kinds of natural selection - CORRECT ANSWERS-stabilizing selection,
directional selection, disruptive selection
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