BIOB 272 Genetics and Evolution Final
Exam Questions and Answers
law of the additivity of values - Correct Answers -Vtotal = Vgenotype + Venvironment
evolution - Correct Answers -change in the genetic makeup of a population over time
heritability - Correct Answers -the ability of a trait to be passed down from one
generation to the next
allopatric speciation - Correct Answers -the process of speciation that occurs with
geographic isolation
cross-species infection - Correct Answers -the transmission of an infectious pathogen,
such as a virus, between hosts belonging to different species
genetic cascades - Correct Answers -
transcription factors - Correct Answers -A regulatory protein that binds to DNA and
affects transcription of specific genes.
plasticity - Correct Answers -Interactions between genotypes and the environment
somatic mutations - Correct Answers -occur in any cell except germ cells and are not
heritable
germline mutations - Correct Answers -mutation in a cell that produces gametes
parapatric speciation - Correct Answers -speciation pattern in which populations
speciate while in contact along a common border
sympatric speciation - Correct Answers -Speciation without a divided population.
selective sweep - Correct Answers -new mutation eliminates genetic variation and
increases in frequency
genetic drift - Correct Answers -random change in allele frequencies that occurs in small
populations
bottleneck events - Correct Answers -event that drastically reduces size of a population
example: overhunting of elephant seal almost lead to extinction
Exam Questions and Answers
law of the additivity of values - Correct Answers -Vtotal = Vgenotype + Venvironment
evolution - Correct Answers -change in the genetic makeup of a population over time
heritability - Correct Answers -the ability of a trait to be passed down from one
generation to the next
allopatric speciation - Correct Answers -the process of speciation that occurs with
geographic isolation
cross-species infection - Correct Answers -the transmission of an infectious pathogen,
such as a virus, between hosts belonging to different species
genetic cascades - Correct Answers -
transcription factors - Correct Answers -A regulatory protein that binds to DNA and
affects transcription of specific genes.
plasticity - Correct Answers -Interactions between genotypes and the environment
somatic mutations - Correct Answers -occur in any cell except germ cells and are not
heritable
germline mutations - Correct Answers -mutation in a cell that produces gametes
parapatric speciation - Correct Answers -speciation pattern in which populations
speciate while in contact along a common border
sympatric speciation - Correct Answers -Speciation without a divided population.
selective sweep - Correct Answers -new mutation eliminates genetic variation and
increases in frequency
genetic drift - Correct Answers -random change in allele frequencies that occurs in small
populations
bottleneck events - Correct Answers -event that drastically reduces size of a population
example: overhunting of elephant seal almost lead to extinction
