Evolution Part 1

Evolution

The change over time and adaption to the environment over time.

What is Descent of modification

Darwin theory and Evolution

Macroevolution

Where big changes happen throughout time. Compares changes at a high rate

micro evolution

Where small changes happen throughout time.

What are the five major forces

Natural selection

sexual selection

gene flow'

Mutation

genetic drift

Natural selection

How the environment reacts and the population due to different survival aspects and reproduction

Fitness

living things have to do more to survive and tries to be abundant

Sexual selction

the access of reproduction and mating. can reduce genetic diversity

Gene flow

How individuals more throughout generation one population to another. Carrys alleles to increase the frequency of alleles. Can be part of the same species with interbreeding.

Mutation

The change in genes that can have no or affective changes. Occurs randomly. different alleles may survive

Why might some organisms accumulate more mutations over the same period of time as other organisms?

RNA polymerases not coding correctly and more mistakes

Gentic drift

Movemnet to another location or a event.

Genetic bottle necking

Population reduced by a occurrence and doesn’t happen frequently

Founder effect

Leave the main population to make a new sub unit

Generation to Generation sampling error

Possible gametes

What can genetic drift do hint(negative)

cause deleterious alleles and fixation

Harrey Weinburg equilibrium

Compares different genotypes that would expect if the previous generation had some alleles frequency

Rules of Weinburg

Cant have selection

no migration

The population needs to be large

MATING IS RANDOM

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