Population Genetics: When Darwin Met Mendel - Crash Course Biology #18

Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.

Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashC...
Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse

References for this episode can be found in the Google document here: http://dft.ba/-2HbN

Table of Contents:

1. Population Genetics 1:05
2. Population 1:14
3. Allele Frequency 1:41
4. 5 Factors 1:58
a) Natural Selection 2:12
b) Natural Selection/Random Mating 2:27
c) Mutation 3:18
d) Genetic Drift 3:49
e) Gene Flow 4:05

5. Hardy-Weinberg Principle 4:45
6. Hardy-Weinberg Equilibrium 5:15
7. Hardy-Weinberg Equation 6:18

gregor mendel, heredity, genetics, charles darwin, natural selection, evolution, offspring, population genetics, species, population, generation, allele frequency, allele, selective pressure, sexual selection, non-random mating, preferred traits, fitness, mutation, DNA, genetic drift, chance, gene flow, immigration, emigration, godfrey hardy, wilhelm weinberg, hardy-weinberg equation, hardy-weinberg equilibrium, phenotype, genotype, earwax, mendelian trait, homozygous, heterozygous, evolutionary biology

This video contains the following sound from Freesound.org:

"LucasGonze-HomestyleMandolin-17.aiff" by lucasgonze

• Category

  Education

[RPGaddictC]

There are many things I don't like about my country, England. Our government, our lack of morale, our government being partially controlled by the Church. One thing however, that I will always be very proud of, is that we have Charles Darwin on our £10 note :D

[Nils Bauer]

"Alas, Earwax." Cookies for the Harry Potter Reference! <3

[Lena Holstein]

Back then, people thought Darwin was crazy for his theory on evolution, since everything was believed to be made by god. So he studied spending most of his time on it, and defended from people who didn't believe it.

[stowelljg]

I was wondering why this episode was a mirror image, but then you started to write on the glass in front of you and Bingo!, I discovered why.

[Jasmine Sun]

MATERS GONNA MATE

[Joel white]

he is starting to be my favorite green brother

[mishmashmixofstuff]

That makes so much sense.

[MiniUin]

MATH! WHAT!?! THERES NO CRASH COURSE MATH!!!!! I CANT UNDERSTAND WITHOUT A CRASH COURSE FIRST!!!!!!!!

[TheManOfRash]

whoops I meant Michael Faraday; that's embarassing

[TheManOfRash]

I miss the £20 Isaac Newton note!

[Tivyan Wignes]

bloody amazing