biol 2060 - Assignment one: chapter 1: 1, a,c,d,g;...

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

View Full Document Right Arrow Icon
Assignment one: chapter 1: 1, a,c,d,g; 3;5;7;9;13;21; chapter 2:1,3,5,9,15,21,25. One extra problem: People with albinism have litlle pigment in their skin, hair, and eyes. The gene that governs albinism has two forms (alleles), which we denote by A and a. EAch person has a pair of these genes, one inherited from each parent. A child inherits one of each parent's two alleles, independently with probability 0.5. Albinism is a recessive trait, so a person is albino only if inherited pair is aa. (a) Beth's parents are not albino but she has an albino brother. This implies that both of Beth's parents have type Aa. Why? (b) Which of the types aa, Aa, AA could a child of Beth's parents have? What is the probability of each type? (c) Beth is not albino. What are the conditional probabilities for Beth's possible genetic types, given this fact? (d) From part (c), Beth knows the probabilities for her genetic type. She marries Bob, who is albino. Beth and Bob's first child is non-albino. What is the conditional probability that Beth is a carrier, type Aa?
Background image of page 1

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

View Full DocumentRight Arrow Icon
Due date: September 24, Wednesday. The assignments will
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 05/18/2010 for the course BIOL 2060 taught by Professor Profgao during the Spring '10 term at York University.

Page1 / 3

biol 2060 - Assignment one: chapter 1: 1, a,c,d,g;...

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