- A rare dominant mutation causes a neurological disease that appears late in life in all people that carry the mutation. If a father has this disease, what is the probability that his daughter will also have the disease?
- Construct Punnett Squares to accompany the crosses shown in Figure 10.4.2.
- Draw reciprocal crosses that would show that the turkey E-gene is on the Z-chromosome.
Some extra reading and other activities!
- Read “The Y chromosome is disappearing – so what will happen to men?” a 2018 article published in The Conversation by Darren Griffin and Peter Ellis from the University of Kent. It provides a discussion about the rate of disappearance of the Y-chromosome in the human genome. Also, take a look at the following animation video on YouTube, Recombination of the Y Chromosome | HHMI BioInteractive Video, which relates to this article.
- Visit the HHMI Sex Verification Testing of Athletes interactive, by BioInteractive. Relate this back to crossing over in meiosis (In Recombination of the Y Chromosome | HHMI BioInteractive Video on YouTube).
Griffin, D., Ellis, P. (2018, January 17). The Y chromosome is disappearing – so what will happen to men. The Conversation (accessed January 11, 2021). https://theconversation.com/the-y-chromosome-is-disappearing-so-what-will-happen-to-men-90125
HHMI BioInteractive. (2018, November 29). Recombination of the Y chromosome | HHMI BioInteractive video (video file). YouTube. https://www.youtube.com/watch?v=nIBPBM2z3Kg&feature=emb_logo
HHMI BioInteractive. (n.d.). Sex verification testing of athletes [interactive]. HHMI BioInteractive (accessed January 11, 2021) https://www.biointeractive.org/classroom-resources/sex-verification-testing-athletes