Evolution

Evolution is:

Desecent without modification

Changes from one generation to the next

Changes in allele frequencies

A trait that can be passed down to the next generation

Descent explains:

A trait without modication

Inheritance, a trait that can be passed down

An allele

The mechanism of evolution

Modification is:

Descent from your parents

Genetic change in population

Changes from one generation to the next

All organsims are related in one way or another

When does evolution occur?

When genetic change in population over time

When the next generation has completely new alleles

When the current population is deceased

When the current population has new alleles

What are Darwin's two main points?

Modification and evolution

Ewolution and natural selection

Desenet and modification

Allele changes and natural selection

T/F: Alleles can change in an indiviual and a popluation

True

False

Microevolution is:

Small changes in alleles

Changes in the gene pool within one population

Generation to generation change in the gene pool

Changes in the genes from one generation

Natural selection is:

The mechanism of evolution

The way we get our genes

Changes from one generation to the next

Variation and heritability

Gene pools are:

A population's genes

How many times the alleles occur

All the genes humans posses

Exist becuase of evolution

Natural selection explains:

How many times the allele occurs in a population

How the next generation will survive

Is a mechanism for the generations to evolve

Which variations are most likely to survive

Cat A is on an island and Cat B is on the mainland. Are they part of the same popualtion?

Yes

T/F: Populations are capable of meeting and mating.

True

False

What is the smallest unit that can evolve?

Gene

Allele

Popluation

Descents

T/F: Natural selection acts on indiviuals while evolution acts on a population.

True

False

T/F: Thru microevolution, species can adapt to the local enviorment with gradual adaptations.

True

False

Darwin fitness explains:

How many adaptations can improve over time

How many offspring one contributed too

How the alleles change to adapt to the enviornment

How natural selection changes from generation to generation

Killing off the short giraffe explains:

Evolution

Fitness

Natural Selection

Microevolution

What is the most important mechanism of evolution?

Changes in alleles

Natural Selection

Genetic changes

Limited resources

What are the three modes of natural selection?

Mechanism, directional and evolution

Variation, competition and stabilizing

Disruptive, mechanism and over production

Directional, disruptive and stabilizing

Directional selection is:

One extreme phenotype is the most fit and the environment selects against other phenotypes

Two or more extreme phenotypes are more firt than other indiviuals

Disruptive and diversifying

Contains two or more phenotypes

An example of directional selection is:

The gray wolf eating all the white rabbits

Rise of antibiotic resistance

Two or more dominant phenotypes join

Limited resources to a certain population

Disruptive Selection is also know as

Variation

Competition

Diversifying

Directional

Disruptive selection deals with:

One phenotype

A large amount of phenotypes

Two or more phenotypes

Stablizing selection is:

Leads to changes in a gene pool

Extreme phenotypes are less fit than intermedicates

Occur only in certain popluations

Only present when mutations are involved

Disruptive selection is when:

The most fit phenotype wins

Two or more extreme phenotypes are more fit than indiviuals

Happen when mutations are present

Happen when one extreme phenotype is the most fit

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Evolution

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