Chapter 23 Evolution

Biology 1407 with Boyle at Blinn College

About this deck

By: Glenna Soirez
Textbook:

Biology: Life on Earth and Life on Earth with Physiology, Student Study Guide
Created: 2012-02-05
Size: 16 flashcards
Views: 8

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Biological Evolution

Population or Species Level

Heritible Change

MicroEvolution

single gene

MacroEvolution

Speciation

Population

Species that can mate (due to proximity)

Darwin

1809

Geology - age of earth - uniformitarianism

Economics - limited resource theories

Beagle - exposed to variation

Artificial Selection - exposed to the possibilty of selection

Placental vs. Marsupial

North vs. South

Convergent Evolution

Analogs

Homology - 3 types

Due to descent

Anatomical

Developmental

Molecular

Anatomical Homology

Forelimbs

Vestigal Structures

Developmental Homology

Vertibrate Embryos

Molecular Homology

Homologies across multiple genes

1. Ortholog vs Paralog

2. Exon Shuffling

3. Horizontal Gene Transfer

Ortholog Genes

Ancestral

Duplicated Gene that diverges in different species

ortho = straight; straightdown the evolutionary tree

Paralog Genes

Inter-species

Globin variations

para = beside; my species on the evolutionary tree

Exon Shuffling

via double crossover

transposable elements

likely to produce a protein with an additional domain

Horizontal Gene Transfer

Common among bacteria, but can happen across the board

Genomic Evolution

Change in chromasome structure or number

About this deck

By: Glenna Soirez
Textbook:

Biology: Life on Earth and Life on Earth with Physiology, Student Study Guide
Created: 2012-02-05
Size: 16 flashcards
Views: 8

About StudyBlue

“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis