lec 2

33問 • 1年前

問題一覧

On The Origin of Species did two things:

summarized all of the evidence in favor of the idea that all organisms have descended with modification from a common ancestor, and thus built a strong case for evolution, Suggested natural selection as a mechanism of evolution

rediscover and elaborate upon Mendel's findings on inheritance

Hugo de Vries, William Bateson, Thomas Hunt Morgan

establish the concept of genes and the role of mutation in altering genes.

Hugo de Vries, William Bateson, Thomas Hunt Morgan

____ later works on the genetics of the fruit fly, Drosophila melanogaster, which remains an extremely important research animal today

Morgan

expresses an ideal distribution of genotypes within a population, assuming that the gene frequencies are known.

G. H. Hardy (British Mathemetician), W. Weinberg (German physician)

is the frequency of occurrence or proportions of different alleles of a particular gene in a given population).

gene frequency

Random changes in the frequencies of alleles or genotypes in a populations due to sampling error of gametes/genotypes in their contribution to next generation

Genetic Drift

Changes in overall genetic makeup of population due to chance, rather than natural selection

Genetic Drift

The Major Players

R. A. Fisher, J. S. Haldane, Sewall Wright

statistics of gene flow (mixing of genes between populations)

Fisher

mathematical models of gene frequency

Haldane

genetic drift': evolution not directed by natural selection only

Sewall Wright

use studies of the distribution of genes in populations to recognize that natural selection is the only evolutionary mechanism compatible with the new discoveries in genetics

Fisher, Haldane, Wright

Ronald A. Fisher, J. B. S. Haldane, and Sewall Wright: the integration of:

Theory of inheritance, Genetics the cause of continuous variation, Genetics as a factor that allows variation to be maintained

Darwin’s “_____” and Mendel’s concept of “______” are compatible

natural selection, particulate inheritance

apply theoretical genetics, population studies, selection theory to real populations

Theodosius Dobzhansky, Ernst Mayr, George Gaylord Simpson

also incorporate comparative biology, biogeography and paleontology into evolutionary theory

George Gaylord Simpson, Theodosius Dobzhansky, Ernst Mayr

outline the coiled, helical structure of DNA, which provides a molecular basis for inheritance and evolution.

Francis Crick, James Watson

Beginning of Reductionist Evolutionary Philosophy:

Living Things are Their Genes

a species is group of interbreeding organisms

Biological species concept

genetic makeup and outward physical appearance are related, but are separate entities

Genotype and Phenotype are separate

no blending of characters

Mendel’s Laws of Inheritance

the raw material for natural selection

Random mutations and recombinations are the sources of variation

Natural populations are gene pools that contain ____

variation

_____ and ____ both play role

Natural Selection, Random Genetic Drift

change in gene frequencies

evolution

Reproductive isolation leads to _____

speciation

All that shapes an organism is its genes. Populations are simply gene pools.

Reductionism

All changes are adaptive in some way

Panselectionism

Natural Selection is the force that directs such change

Panselectionism

Small genetic changes in genotype can be extrapolated indefinitely upward to explain all evolutionary changes

Extrapolationism

Gradual changes in phenotype over hundreds of generations

Gradualism

Produce new anatomical features and eventually new species

Gradualism

Wildlife lab

Wildlife lab

Wildlife lec

Wildlife lec

amphibians module 5

amphibians module 5

quiz bee

quiz bee

herpetology

herpetology

Wildlife lec finals

Wildlife lec finals

eme

eme

act 2

act 2

ppt

ppt

first quiz

first quiz

lec 1

lec 1

2nd quiz part 2

2nd quiz part 2

2nd quiz part 3

2nd quiz part 3

2nd quiz part 1

2nd quiz part 1

問題一覧

On The Origin of Species did two things:

rediscover and elaborate upon Mendel's findings on inheritance

Hugo de Vries, William Bateson, Thomas Hunt Morgan

establish the concept of genes and the role of mutation in altering genes.

Hugo de Vries, William Bateson, Thomas Hunt Morgan

____ later works on the genetics of the fruit fly, Drosophila melanogaster, which remains an extremely important research animal today

Morgan

expresses an ideal distribution of genotypes within a population, assuming that the gene frequencies are known.

G. H. Hardy (British Mathemetician), W. Weinberg (German physician)

is the frequency of occurrence or proportions of different alleles of a particular gene in a given population).

gene frequency

Random changes in the frequencies of alleles or genotypes in a populations due to sampling error of gametes/genotypes in their contribution to next generation

Genetic Drift

Changes in overall genetic makeup of population due to chance, rather than natural selection

Genetic Drift

The Major Players

R. A. Fisher, J. S. Haldane, Sewall Wright

statistics of gene flow (mixing of genes between populations)

Fisher

mathematical models of gene frequency

Haldane

genetic drift': evolution not directed by natural selection only

Sewall Wright

use studies of the distribution of genes in populations to recognize that natural selection is the only evolutionary mechanism compatible with the new discoveries in genetics

Fisher, Haldane, Wright

Ronald A. Fisher, J. B. S. Haldane, and Sewall Wright: the integration of:

Theory of inheritance, Genetics the cause of continuous variation, Genetics as a factor that allows variation to be maintained

Darwin’s “_____” and Mendel’s concept of “______” are compatible

natural selection, particulate inheritance

apply theoretical genetics, population studies, selection theory to real populations

Theodosius Dobzhansky, Ernst Mayr, George Gaylord Simpson

also incorporate comparative biology, biogeography and paleontology into evolutionary theory

George Gaylord Simpson, Theodosius Dobzhansky, Ernst Mayr

outline the coiled, helical structure of DNA, which provides a molecular basis for inheritance and evolution.

Francis Crick, James Watson

Beginning of Reductionist Evolutionary Philosophy:

Living Things are Their Genes

a species is group of interbreeding organisms

Biological species concept

genetic makeup and outward physical appearance are related, but are separate entities

Genotype and Phenotype are separate

no blending of characters

Mendel’s Laws of Inheritance

the raw material for natural selection

Random mutations and recombinations are the sources of variation

Natural populations are gene pools that contain ____

variation

_____ and ____ both play role

Natural Selection, Random Genetic Drift

change in gene frequencies

evolution

Reproductive isolation leads to _____

speciation

All that shapes an organism is its genes. Populations are simply gene pools.

Reductionism

All changes are adaptive in some way

Panselectionism

Natural Selection is the force that directs such change

Panselectionism

Small genetic changes in genotype can be extrapolated indefinitely upward to explain all evolutionary changes

Extrapolationism

Gradual changes in phenotype over hundreds of generations

Gradualism

Produce new anatomical features and eventually new species

Gradualism