Genetics handout week 7

Genetics handout week 7 - Greg Tyson gtyson@ucsd.edu OH:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Greg Tyson gtyson@ucsd.edu OH: Mondays, 5-6 Week 7 Handout 1. A _______ __________ is a method to independently calculated probabilities of different traits and then multiplying them together. 2. A ____ ________ test is used to determine if an observed traits’ deviance from expected values is due simply to chance. X 2 = Σ (observed-expected) 2 Expected 3. Time to combine some concepts: Flower color for petunias exhibits unusual dominance. There can be red flowers (RR), white flowers (rr), pink (Rr). In these petunias, brown seeds (B) are dominant over black seeds (b). a. What kind of dominance is exhibited in flower color? b. Two pink petunias heterozygous for brown seeds are crossed with each other. What will be the resulting phenotypic ratios of the progeny? Use a branch diagram to show this. c. The results of the cross in part b are the following progeny: 24 red flowers, brown seeds 8 red flowers, black seeds 68 pink flowers, brown seeds 22 pink flowers, black seeds 28 white flowers, brown seeds
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/02/2008 for the course BICD 100 taught by Professor Nehring during the Spring '08 term at UCSD.

Page1 / 2

Genetics handout week 7 - Greg Tyson gtyson@ucsd.edu OH:...

This preview shows document pages 1 - 2. Sign up to view the full document.

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