Tutorial 2 Assignment

Tutorial 2 Assignment - Biology 2C03: Genetics Tutorial 2...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Biology 2C03: Genetics Tutorial 2 Assignment 1. Many studies have suggested a strong genetic predisposition to migraine headaches, but the mode of inheritance is not clear. L. Russo and colleagues examined migraine headaches in several families, two of which are shown below (L. Russo et al. 2005. American Journal of Human Genetics 76:327 333). What is the most likely mode of inheritance for migraine headaches in these families? Explain your reasoning.( 2 marks)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. You have sought a job at a human genetic counseling clinic. They gave you an aptitude test shown below. Answer the yes/no questions concerning each of the four pedigrees. Assume that none of these traits is the result of a spontaneous mutation. Assume 100% penetrance for all pedigree problems in this problem set (meaning dominant alleles will always be expressed). (2 marks) a) Could this trait be inherited as a simple autosomal recessive? YES NO b) Could this trait be inherited as a simple autosomal dominant? YES
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/10/2011 for the course BIO 2C03 taught by Professor Dr during the Spring '11 term at McMaster University.

Page1 / 4

Tutorial 2 Assignment - Biology 2C03: Genetics Tutorial 2...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online