Khan Academy: Punnett Squares

The topics in the previous video about dominant and recessive traits are continued here as Sal Khan explains incomplete dominance, the randomness of genotypes and phenotypes, and covers how to calculate probabilities using Punnett...

Video tutorial investigates how to use Punnett squares to calculate probabilities of different phenotypes. Includes worked examples of dihybrid crosses, independent assortment, incomplete dominance, codominance, and multiple alleles....

Detailed examples of dihybrid crosses using a Punnett Square. [25:16]

Resource provides a discussion of Mendel's law of segregation with a focus on genotype, phenotype, alleles, heterozygous/homozygous, and 2 x 2 Punnett squares.

Article defines Mendel's law of independent assortment, provides examples, and takes a look at how it is used to make predictions. Also, discusses dihybrid crosses and 4 x 4 Punnett squares.

[Free Registration/Login may be required to access all resource tools.] In this Kahn Academy video, learn about Punnettt squares, with specific information on dihybrid crosses, independent assortment, incomplete dominance, codominance,...

Learn how to use Punnett squares to calculate probabilities of different phenotypes. Includes worked examples of dihybrid crosses. independent assortment, incomplete dominance, codominance, and multiple alleles. [25:17]

Example punnet square for sex-linked recessive trait. [4:53]

Learn about VSEPR for six electron clouds, and see examples for octahedral, square pyramidal, and planar molecules. [12:29]

This worked example by Sal Khan calculates the water potential of potato squares based on placing them in various concentrations of sucrose solutions. [6:44]