Chapter 24 Molecular Evolution
Date Issued
2000
Date
2000
Author(s)
Wang, Yue-Wen
DOI
246246/2006092815540077
Abstract
1. Populations and genes change over evolutionary time. Molecular evolution examines DNA and proteins, addressing two types of questions:
a. How do DNA and protein molecules evolve?
b. How are genes and organisms evolutionarily related?
2. Population genetics focuses on changes between generations. Molecular evolution considers the hundreds or thousands of generations needed for speciation, where small departures from Hardy-Weinberg equilibrium, random effects and slight differences in fitness can become very significant.
3. Development of techniques in molecular biology makes it possible to study molecular evolution, using genomes as historical records that can:
a. Reveal the dynamics of evolutionary processes.
b. Indicate the chronology of change.
c. Identify phylogenetic relationships between organisms.
Publisher
臺北市:國立臺灣大學農藝學系
Type
learning object
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