Lecture11.BioSci97

Lecture11.BioSci97 - Announcements Lecture 11 Next...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Announcements Lecture 11 Next Monday (Oct. 26) will be a review session
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 Sample Pedigree Problem
Background image of page 2
3 Punnett Square Example: Ww X ww Step 1: Determine gamete genotypes (and probabilities) from parental genotypes Step 2: Determine progeny genotypes (and probabilities) by filling in Punnett square Step 3: Calculate genotype ratios Step 4: Calculate phenotype ratios by determining phenotype of each genotype
Background image of page 3

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

View Full DocumentRight Arrow Icon
4 Review of Multifactorial Traits How to determine phenotypic variance ( σ p 2 ) Measure phenotypic variance of diverse population (diverse in terms of genotype and environment) How to determine genotypic variance ( σ g 2 ) Take a genotypically mixed population and place them in the same environment; measure phenotypic variance (spread) How to determine environmental variance ( σ e 2 ) Take a genotypically identical population and place them in different environments; measure phenotypic variance (spread) Phenotypic variance = Genotypic variance + Environmental variance Heritability = genotypic variance / phenotypic variance Problem is that we cannot do this perfect experiment Examine identical twins in different environments; fraternal
Background image of page 4
5 Modern Experimental Genetics Lecture 11 Fall 2009
Background image of page 5

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

View Full DocumentRight Arrow Icon
6 Outline Lecture 11 Complementation Yeast genetics Mutant screen Characterization of mutants Types of mutations Complementation test
Background image of page 6
7 Adventures in Flower Breeding (true-breeding white flower) X (true-breeding purple flower) – F 1 = All purple • Self-cross the F 1 – F 2 = 3 purple : 1 white White flower appears to be a typical Mendelian recessive trait. But wait, when I take a white flower from Amy’s
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

Lecture11.BioSci97 - Announcements Lecture 11 Next...

This preview shows document pages 1 - 8. Sign up to view the full document.

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