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Molecular evolution continuation.

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Natural selection, mutation, genetic drift, and gene flow drive the process of evolution. Evolution is the process by which populations change over time. When we talk about how populations change in an evolutionary sense, we're generally talking about the frequency of different alleles within that population.

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BOTA 422
LECTURE 7: Molecular Evolution Cont’d



DR. BENSON O. NYONGESA




02/18/2024

, Mobile Genetic Elements & Role in Evolution
• ‘’Are jumping genes’’
• A DNA sequence able to insert itself (or a copy of itself) a
new location in the genome without having any sequence
relationship with the target locus.

• Transposition: movement of transposons from one site to
another in the same or different DNA.

• Found in almost all organisms

• Mainly knowns as transposable elements
02/18/2024

, Transposable Genetic Elements: Causes
emergence of new phenotypes in maize




02/18/2024

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