Monday, January 23, 2012

Gene Linkage, Sex Chromosomes and Mutations

Today (or tomorrow for G period) we worked on pages 7-9 of the packet.  However, not all species have sex chromosomes.  We talked about sex determination in wasps and tonight for homework, you will learn about the effects that temperature can play on sex determination.

1. Read this article from on temperature dependent sex determination

2. Answer the following questions:

a. What is the difference between GSD and ESD?

b. What is TSD?

c. Do humans exhibit GSD or ESD?

d. Give two examples of organisms which lack sex chromosomes.

e. What are the two patterns of TSD?

f. Global temperatures have been rising.  What effects could this have on crocodilians and some species of turtles?

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