Lecture quizzes Flashcards
A visual that best represents evolution is …..
a branching tree rooted from a single node
T or F, evolution informs us of what is ethical or not based on observations?
False
Biological evolution involves ____ change across ___ within ___
genetic, time, populations
Did Aristotle think species could change over time?
no
Linnaeus’ systema naturae and aristotles scala natura were (2 similar one difference)
both tried to classify natural entities
both employed hierarchical structure
scala natura recognized differences among entities but systema natura incorporated relationships among entities
The idea that traits acquired by an individual in life via the attraction of nervous fluid could be passed onto offspring is ….
Lamarcks
Origin of species published…
Nov 24 1859
Which historical figure had ideas similar to Darwins?
Wallace
What kind of inheritance did Darwin initially think
Blended
Three ingredients required for natsec?
Variation, heredity, fitness consequence
mendelian inheritance, controlled by one loci and labrador color are examples of… variation
discrete
polygenic inheritance and height are examples of …. variation
continuous
Which is species selection?
Higher rate of speciation among small bodied lineages
offspring body size is heritable
large bodied individuals are more likely to be altruistic
faster individuals have higher lifetime reproductive success than slower individuals
higher rate of speciation among small bodied lineages
What information is needed for the animal model?
pedigree and phenotypic data
Why would a bad allele persist in a population?
results from recurrent mutation
mutation selection balance will lead to an increase in the frequency of a deleterious allele over time? T/F?
false
A high migration relative to effective population size of a focal population will cause the FST value to approach 1 T/F?
false, we divide by both values in the formula so if migration or effective population size are high than the fixation index will be lower
What can a wide cline in a broadly ranged species indicate>**
selection is weak but migration variance is high
high migration and weak selection produce a wide cline
low migration and high selection produce a steep cline
What is assortative mating?
sexual selection where individuals with similar phenotypes preferentially mate with eachother