Paul Andersen introduces the Punnett Square as a a powerful tool in genetic analysis. He tries to address major misconceptions that students have when use a Punnett Square. He gives a number of examples of monohybrid crosses and one example of a dihybri...

Significance of the Hardy-Weinberg Equation
By the outset of the 20th century, geneticists were able to use Punnett squares to predict the probability of offspring genotypes for particular traits based on the known genotypes of their two parents when the...

In this video Paul Andersen explains how you can combine the power of a Punnett square for an entire gene pool. Hardy-Weinberg equilibrium will remains constant under several constrains and the probability square makes the information more understandable...

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.
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An explanation of how to compute the chi-squared statistic for independent measures of nominal data.
For an explanation of significance testing in general, see http://evc-cit.info/psych018/hyptest/index.html
There is also a chi-squared calculator at htt...

Biology teacher Andrew Douch (Douchy) Explains how to determine from a dihybrid test cross, whether two gene loci are linked or assort independently....

A quick overview of the difference between homozygous and heterozygous alleles relating to Mendelian genetics.
Thanks for stopping by. Today we are talking about homozygous vs heterozygous alleles. This is going to be a pretty quick video but I wanted to...

Shows how to solve trihybrid (and by extension, higher-order) crosses using the forked line, or branch diagram, method.
The music is Maynard Ferguson's cover of "Baker Street," off of his "Carnival" album....