Amoeba Sisters
Punnett Squares and Sex-Linked Traits (UPDATED)
Explore how to solve Punnett squares that involve sex-linked traits, specifically focusing on X-linked traits. Video has a resource available here https://www.amoebasisters.com/handouts This 2023 UPDATED sex-linked traits Amoeba Sisters...
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda
SciShow
Why Fava Beans Can Kill You
For some people, fava beans can be deadly. What is it about this little legume that makes it so?
Bozeman Science
X Inactivation
Paul Andersen explains how X inactivation works in mammals. This process was first described by Mary Lyon. Each cell in a female will have on activated and one inactivated X chromosome. This explains why almost all calico cats are female.
Amoeba Sisters
Punnett Squares and Sex-Linked Traits
Explore inheritance when carried on the X chromosome with the Amoeba Sisters! This video focuses on how to do general Punnett square problems that involve traits on the sex chromosomes (X and Y chromosomes). We do want to point out...
Catalyst University
Genetics | X-chromosome Inactivation, Barr Bodies, and the Calico Cat
X-chromosome inactivation in various sex chromosome genotypes (XX, XY, XXY, XXX, XO) and resulting Barr bodies; the Lyon hypothesis; the proposed mechanism of Calico cats
Khan Academy
Khan Academy: Biology: Sex Linked Traits
An explanation of gender determination. [14:19]
University of Utah
University of Utah: Molecular Genealogy: X Chromosome Dna
X chromosome inheritance is described in this brief animated video. Its' role in determining genealogies is also mentioned.