17.1
17.2
17.3
17.4/17.3
The Whole Chapter
100
These are the genes carried by all members of a particular population.
What is gene pool?
100
This is why the allele frequencies in a gene pool change in genetic drift.
What is chance?
100
This is the separation of populations by barriers such as rivers, mountains, or bodies of water.
What is geographic isolation.
100
Produces a duplicate gene.
What is crossing-over during meiosis?
100
This is what allele frequencies of other alleles in a gene pool do when the allele frequency of one allele increases.
What is decrease?
200
These are acted on directly by natural selection.
What is phenotypes?
200
Genetic drift tends to occur in these populations.
What is are small?
200
This is a factor that is necessary for the formation of a new species.
What is reproductive isolation?
200
Hox genes control these.
What is patterns of embryological development?
200
This is a change in an organism's genetic material that does not affect its overall fitness.
What is neutral mutation?
300
Three sources of genetic variation.
What is secual reproduction, lateral gene transfer, and mutations?
300
This is the type of genetic drift that follows the colonization of a new habitat by a small group of individuals.
What is the founder effect?
300
This is the situation in a population when some plants flowers open midday and other plants flowers open late in the day.
What is temporal isolation?
300
This uses mutation rates in DNA to estimate the time that two species have been evolving independently.
What is a molecular clock?
300
A trait controlled by one gene.
What is single gene?
400
This is due to most variation that can be inherited in organisms that reproduce sexually.
What is gene recombination during sexual reproduction?
400
The situation in which allele frequencies in the gene pool of a population remains constant.
What is genetic equilibrium?
400
The first step that occurred in the speciation of the Galapagos finches.
What is founders arrived?
400
Studied by the Grants in the Galapagos, this is a pattern of natural selection that favored individuals with larger, heavier beaks during a drought.
What is directional selection?
400
The lack of mutation that introduce new alleles into a population.
What is variation?
500
This results in a single-gene trait that has two alleles and shows a simple dominant-recessive pattern.
What is two phenotypes?
500
This is according to the Hardy-Weinberg principle that genetic equilibrium would be more likely in a population of mice if this was true.
What is no natural selection takes place?
500
The Grants learned this about mate choice from the Galapagos finches.
What is finches prefer mates with beaks similar in size to their own?
500
The arrival of founders from South America in the Galapagos was the first step towards this.
What is speciation?
500
This type of isolation is when two populations are separated by barriers such as rivers or mountains.
What is geographic isolation?
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