Explore DNA structure/function, chromosomes, genes, and traits and how this relates to heredity! Video can replace old DNA structure & function video and in addition covers foundational concepts of heredity. Table of Contents: Video...

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...

2 min video explaining human pedigree charts for middle school science

Dominant trait needs only 1 affected allele, whereas recessive trait needs both allele. Normally a dominant trait will be seen in all generations, but a recessive trait may skip generations. We can have X-linked dominant or autosomal...

Where in the world are there an estimated 12,000 captive tigers?
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Biology - Adaptation And Evolution - L
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Open a discussion on what has been already learnt in a...

Former Citadel traders Jonas Diedrich and Dave Sutton have exceeded the capital raise target for their hedge fund, making it the biggest startup of the year. Katherine Burton has more on "Bloomberg Markets: The...

With a solid design pedigree (his parents are Sao Paulo designers Gloria Coelho and Reinaldo Lourenço) and a front row of high-profile editors, 20-year-old Brazilian designer Pedro Lourenço is a star in the making. This A/W 2011...

EVENT CAPSULE CHYRON: 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood, New York, NY, 3/30/10 (Footage by WireImage Video/GettyImages)

Carrie Underwood at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Nancy Taylor, Carrie Underwood and John Anton at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Sleeping Kitty

Portrait of Siberian Husky on the background of snowy landscape.

EVENT CAPSULE CLEAN: 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood, New York, NY, 3/30/10 (Footage by WireImage Video/GettyImages)

Nancy Taylor, Carrie Underwood and John Anton at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

ATMOSPHERE: Signage at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

ATMOSPHERE: Signage at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Carrie Underwood at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Carrie Underwood at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Carrie Underwood at the 6th Annual Pedigree Adoption Drive Teams Up With Carrie Underwood at New York NY. (Footage by WireImage Video/GettyImages)

Girl plays with Siberian Husky in winter time.

Pomeranian dog.

Playful Kitten

Playful Kitten

Funny sleeping beagle dog at night