Explore autosomal recessive trait and X-linked recessive trait tracking in pedigrees with the Amoeba Sisters! Table of Contents: Intro 00:00 Introducing Symbols/Numbering in Pedigree 0:40 Meaning of Shading in Shapes 1:19 Introducing...

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...

In this video Paul Andersen explains the elements in the Hardy-Weinberg equation; including the allele frequency and phenotype frequency. He begins with a brief explanation of phenotypes and genotypes. A sample problem is worked out...

Paul Andersen shows you how to solve simple Hardy-Weinberg problems. He starts with a brief description of a gene pool and shows you how the formula is derived. He then shows you how to solve a couple of sample problems.

Each father and mother pass down traits to their children, who inherit combinations of their dominant or recessive alleles. But how do we know so much about genetics today? Hortensia Jimenez Diaz explains how studying pea plants revealed...

Hank brings us the story of Gregor Mendel, the Austrian monk who, with the help of a garden full of pea plants, discovered the fundamental properties of inheritance and paved the way for modern genetics. He also gives us the dirt on a...

Genetics are extremely complicated—so complicated that having an extra finger or toe, for example, is exceedingly rare despite it being caused by a dominant gene.

Sometimes trail blazers of science aren't famous like Darwin or Pasteur. Sometimes they're humble Abbots, just growing peas in the back of their Abbey. This is the story of Gregor Mendel and how his work was done, lost, then found again.

In this video Paul Andersen describes genetics at the chromosomal level. He begins with a simple monohybrid cross as viewed through Mendelian genetics and then shows how genes are distributed through meiosis to possible gametes. This...

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.

Poop Transplants!

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...

Once you've got simple major and minor chords under your fingers, 7th barre chords are the next stage to make your playing sound more professional. Stuart Ryan shows you the relevance of the major 7, minor 7 and dominant 7 chords.

Howcast - Learn how to replace violin strings from musician Julie Artzt Becker in this Howcast video.

Howcast - Learn how to play dominant 7th chords in this keyboard tutorial from Howcast.

Howcast - Let tennis pros Joe Perez and Kirk Moritz teach you how to do a two-handed backhand in this Howcast video.

Howcast - Learn what MMA submissions are from Team Radical MMA head coach Rene Dreifuss in this Howcast video.

Howcast -Learn how to throw an offside pass from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn the difference between a left hand reading and a right hand reading from psychotherapist and palm reading expert Ellen Goldberg, M.A. in this Howcast video.

Pupil outcome: I can explain the role of violence and honour in Elizabethan society. Key learning points: - ‘Romeo and Juliet’ opens and ends with acts of violence. - Exposure to violence would have been a reality in Elizabethan England....

Pupil outcome: I can explain how Shakespeare links the concepts of violence and masculinity in Act 1, Scene 1 of 'Romeo and Juliet'. Key learning points: - By opening with men bearing swords, Shakespeare implies that we should connect...

Pupil outcome: I can write a descriptive paragraph inspired by Bruegel's painting 'The Hunters in the Snow' and Walter de la Mare's poem 'Breughel’s Winter'. Key learning points: - Walter de la Mare's 'Brueghel’s Winter' is an ekphrastic...

Pupil outcome: I can identify and explore complex ideas in a text. Key learning points: - Before reading, it can be useful to consider the purpose, form and audience of a text. - Identifying complex ideas in a text can help deepen your...

Blood grouping is based on the presence of specific antigens—A, B, and H—on red blood cells, encoded by the ABO gene system. Individuals with blood type A have A antigens and anti-B antibodies, B has B antigens and anti-A antibodies, AB...