Factors of evolution

Август 22, 2022

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Биология
Factors of evolution

Содержание

3. What is Evolution? Evolution-gradual change in the characteristics of a species over several generations and relies
4. FORCES OF EVOLUTION There are mainly four forces of evolution: Mutation, Gene flow, Genetic Drift Natural
5. MUTATION Mutations are changes in the DNA sequence of a cell's genome. When mutations occur, they
12. GENETIC DRIFT Genetic drift is the random fluctuations of allele frequencies within a population from one
16. EXAMPLES OF NATURAL SELECTION:-
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What is Evolution?
Evolution-gradual change in the characteristics of a species over

several generations and relies through various process over time.

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FORCES OF EVOLUTION
There are mainly four forces of evolution:
Mutation,
Gene flow,

Genetic Drift
Natural Selection
which are responsible for fueling the evolution of life on our planet.

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MUTATION
Mutations are changes in the DNA sequence of a cell's genome.

When mutations occur, they may alter the product of a gene, or prevent the gene from functioning, or have no effect.

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GENETIC DRIFT
Genetic drift is the random fluctuations of allele frequencies within a population

from one generation to the next.
Smaller the size of population more likely there is major shift in allele frequency.

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EXAMPLES OF NATURAL SELECTION:-

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