Chalker_Multimedia

Chalker_Multimedia

Published on 19 February 2022

A lecture on the concept of differentiation in evolution and biological systems for secondary level students in biology.

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Transcript
00:00
Differentiation rates
00:09
evolution: Change in the frequency of traits, alleles, and/or genotypes over time.
00:09
mutation: a change in genetic information.
00:09
differentiation: The act of an organism's characteristic changing such that it constitutes a difference from the prior generation.
00:09
00:46
Differentiation occurs when evolution produces a change from the previous generation.
00:54
The rate of differentiation, the speed at which genetic differences between organisms arise, is dependent on several factors: 1) Reproduction rate - how fast an organism is able to sexually or asexually reproduce the next generation of offspring 2) Reproductive success - how likely an organism or the organism's offspring are likely to reproduce 3) Mutation rate - how fast changes in genetics occur every reproductive cycle
01:24
Differentation rates are important because they can show that evolution can act very quickly or very slowly.