BIOA01H3 Chapter Notes - Chapter 17: Allele Frequency, Gene Flow, Jacques Louis Randon

68 views16 pages

silvereel776

16 Dec 2011

School

Department

Course

Professor

For unlimited access to Textbook Notes, a Class+ subscription is required.

3363410481 and 37710 others unlocked

BIOA01H3 Full Course Notes

Verified Note

18 documents

Document Summary

Means of natural selection focused biologists attention on great diversity of organisms: darwin made two major points: the occurrence of something in different forms, in particular: describe by percentage or frequency of each y causes of phenotypic variation, genetic differences between individuals, diff in env. Interaction between genetics and the environment y genetic and phenotypic variations may not be perfectly correlated. y diff genotypes can have the same phenotype y same genotype can have diff phenotype. traits that vary quantitatively will respond to artificial selection only if variation has genetic basis: genetic causes of variation can also be identified by analyzing genealogical pedigrees. genealogical: of or relating to the study or tracing of lines of family descent y what generates genetic variation: 2 potential sources. production of new alleles y arise from small scale mutations in dna.

Related Questions

Evolution is change over ____________. Why is evolution an important concept in biology?

What is a population? How can you identify a population in nature?

What is the ultimate source of random variation in a population? Is this the only source of variation, why or why not?

What is a gene pool? Why is it important to our study of evolution?

How is variation inherited in a population? HINT: There are at least two main contributors to this variation. You should be focusing on gametes!

What is microevolution versus macroevolution?

How do the peppered moths show us microevolution in nature? Why is this NOT macroevolution? HINT: you should consider alleles and mating in your answer.

Do you believe that the Hardy-Weinberg equilibrium is common in nature? Why or why not? In your answer, you should incorporate your knowledge of populations, evolution, and genetics.

Evolution is driven by adaptation and natural selection. In populations, we refer to organisms that are âmost fit.â Explain how evolution and the environment would result in organisms that are âmost fit.â In your answer, indicate whether the âmost fitâ organism today is likely to be the âmost fitâ organism in the future and why.

Microevolution is a change in the frequency of ___________________ in a population but has not resulted in a speciation event thus far. Given this, what factors could lead to a speciation event for this population?

How would you know that a population had divided into two different species (macroevolution)? How could you test for a speciation event experimentally?

The key component of the theory of evolution is naturalselection. Define this process. Why is it commonly known asâsurvival of the fittestâ? What are examples of factors (selectivepressures) that drive evolution of populations?

Be able to explain why the following statement is true: NaturalSelection works on individuals while evolution works on populationsover generations. Or to put it another way: Individuals do notevolve, populations do.

How can evolution explain the formation of complex structuressuch as the eye or the flagella motor?

magentahedgehog199

17.

Which of the following is the correct binomial nomenclature for the common house mouse?

Mus musculus

Mus Musculus

mus musculus

Mus Musculus

A small population of 500 turtles on an island suddenly suffers a natural disaster leaving only 20 surviving turtles. Before the disaster, the turtles had shells with very different shell patterns. After the disaster, the shells all look very similar. What mechanism can best explain this reduction genetic variation?

Genetic drift

Adaptive radiation

Gene flow

Sexual selection

19.

_____ is the gradual change of the genetic makeup (allele frequency) of a population over time.

		Spontaneous generation
		Microevolution
		Macroevolution
		Transmutation 20. Protists are prokayotes. True False

BIOA01H3 Chapter Notes - Chapter 17: Allele Frequency, Gene Flow, Jacques Louis Randon

BIOA01H3 Full Course Notes

Document Summary

Get access

Related Documents

BIOA01H3 Chapter Notes - Chapter 17: Quadrupedalism, Stabilizing Selection, Terrestrial Locomotion

BIOA01H3 Chapter Notes -Allele Frequency, Heterozygote Advantage, Population Bottleneck

BIOA01H3 Lecture Notes - Lecture 2: Broad Peak, Phylogenetics, Main Source

Related Questions