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Dihybrid Crosses and Linked Genes.mov
andrewdouch
4,675 views
Biology teacher Andrew Douch (Douchy) Explains how to determine from a dihybrid test cross, whether two gene loci are linked or assort independently.
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IMG_0432.MOV
andrewdouch
376 views
Demonstration shows how much energy there is in 3 teaspoons of sugar.
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Shedding light on photosynthesis
andrewdouch
1,282 views
A look at the light-dependant and light-independant reactions of photosynthesis.
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5' and 3' ends of DNA.mov
andrewdouch
12,266 views
What do we mean when we talk about the 3' and 5' ends of DNA or RNA
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The ATP Cycle
andrewdouch
11,559 views
Biology teacher Andrew Douch explains the ADP-ATP cycle.
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Evolutionary Timescale
andrewdouch
3,385 views
Biology teacher Andrew Douch describes evolutionary time by scaling it to fit into a single calendar year.
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Skullcast: comparison of hominin skulls
andrewdouch
3,898 views
Biology teacher Andrew Douch makes comparisons between the skulls of an ancient hominin (Australopithecus afarensis) and a modern hominin (Homo sapiens).
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Pedigree Analysis No. 3
andrewdouch
16,810 views
Biology teacher Andrew Douch discusses another example of a pedigree, and shows how to solve it.
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Allele Symbols
andrewdouch
5,061 views
Biology teacher, Andrew Douch explains how to assign appropriate, conventional allele symbols depending on the mode of inheritance.
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Pedigree Analysis 2: How to solve a genetic pedigree. Example No. 2
andrewdouch
36,730 views
Biology teacher Andrew Douch, looks at another pedigree, and explains some of the more subtle aspects of pedigree analysis.
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