Hardy-Weinberg, Selection, Drift and Speciation

Name: Hardy-Weinberg, Selection, Drift and Speciation
Author: StemPy Lab

Evolution is a change in the genes of a population from one generation to the next. You count alleles with the Hardy-Weinberg principle, and you find out why a real population drifts away from it. Then you meet the three kinds of natural selection, genetic drift, the founder effect and gene flow, and you see how all of this can end in a new species. It serves the Indian syllabus (NCERT, NEET) and the matching topic of A-Level, IB and AP.

3 lessons, about 1 h 25 min3 simulations10 problems3 practice questionsPython in every lesson

Created by StemPy Lab

Course outline (3 lessons)

Lesson 1about 30 min
Allele frequencies and the Hardy-Weinberg principle
Evolution shows itself in the genes of a whole population, not in one animal. To see a change, we first have to measure the genes that are there. This lesson counts alleles, states the Hardy-Weinberg principle and uses it to find how many people carry a hidden allele.
1 simulation1 practice question1 Python program4 problems1 Python lab
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Lesson 2about 25 min
Natural selection and its three types
Selection is a change in who leaves more young. It can narrow a population, push it to one side, or split it in two. This lesson draws the three kinds of selection from numbers, and then follows one allele that is selected against.
1 simulation1 practice question1 Python program3 problems
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Lesson 3about 30 min
Genetic drift, gene flow, mutation and the making of species
A small group can lose a gene by chance alone. A new island population can start with a different mix of genes from its parent population. This lesson meets genetic drift, the founder effect, gene flow and mutation, and ends with how a new species can form.
1 simulation1 practice question1 Python program3 problems1 Python lab1 question set1 note
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Population Genetics and Selection: Timed Test

20 questions · 15 min

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Hardy-Weinberg, Selection, Drift and Speciation

Course outline (3 lessons)

Allele frequencies and the Hardy-Weinberg principle

Natural selection and its three types

Genetic drift, gene flow, mutation and the making of species

Test Your Learning

Your teacher

Discussion (0)