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BIOL 1104 Exam 4 Questions With Complete Solutions
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BIOL 1104 Exam 4 Questions With Complete Solutions
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BIOL 1104 Exam 4 Questions With Complete Solutionsadaptive radiation Correct Answer rapid formation of many
new species that are adapted to new niches
allele Correct Answer mutation is typically rare, so alone it
doesn't have much effect on ___ frequencies
allopatric speciation Correct Answer geographic isolation
resulting in genetic divergence *other fatherlands
allopollyploidy Correct Answer fertilization between two
different species (hybridization) with a chromosome doubling
event (restores fertility)
- two distinct species produce a fertile hybrid with increased
ploidy
artificial Correct Answer application of genetic diversity: to
improve ____ selection --> high genetic variation necessary to
shape and mold a species into what we want
atomic gardening Correct Answer 1950s experimentation by
govt. and plant breeders of irradiating plants with gamma
radiation in hope of producing useful mutations
- occasionally worked and produced dozens of useful varieties
autopollyploidy Correct Answer fertilization between members
of the same species with meiotic abnormalities
bad Correct Answer effects of mutations are usually ____,
sometimes not
, chimpanzees Correct Answer humans and ___ share a recent
common ancestor, but have a fused chromosome (2N=46 vs.
2N=48)
conservation Correct Answer application of genetic diversity:
can be used for ___ purposes, where populations with rare or
low diversity are candidates for action
crossing over Correct Answer there can be an uneven exchange
during chromosomal ___ ____, resulting in duplication and
deletion
deficiency Correct Answer if Ho - He < 0, then there is a ___
of heterozygosity
- could reflect assortative mating
- disruptive selection
- subdivision of the population/sample
- reproductive isolation
delete Correct Answer radiation can ___ a portion of a
chromosome
deletion Correct Answer a letter in the code of a
nucleotide/base pair is removed
directional selection Correct Answer individuals with an
extreme phenotype are favored over individuals at the other
extreme
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