Lec37 - Lecture 37 Sex determination and dosage compensation I Introduction A What is it In early development animal embryo must specify gender B

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

View Full Document Right Arrow Icon
Picture 151 Picture 152 Lecture 37 – Sex determination and dosage compensation  I. Introduction A. What is it? In early development, animal embryo must specify gender B. How is it studied? Mutations that transform individuals into inappropriate gender. II. Sex determination - mechanism varies between species A.  C. elegans - acts at level of individual cell ratio chromo. gender 1.0 2X:2A hermaphrodite 0.5 1X:2A male 0.67 2X:3A male 0.75 3X:4A hermaphrodite 1. genetic pathway regulating sex in  C. elegans 2. what about mutations? - eg.  her-1, tra-1 B. Interactions between genes in the same pathway 1. either mutation causes same phenotype 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
Picture 153 - what does this do to the dihybrid ratio? c + /c ; p + /p   X  c + /c ; p + /p c + /–; p + /– c + /–; p /p c /c ; p + /– c /c ;p /p C.  Drosophila - acts at level of individual cell ratio chrom.
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 07/01/2011 for the course L 311 taught by Professor Forrester during the Fall '10 term at Indiana State University .

Page1 / 7

Lec37 - Lecture 37 Sex determination and dosage compensation I Introduction A What is it In early development animal embryo must specify gender B

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