Thomas Hunt Morgan

Nobel Prize

General Summary
(Cold Spring Harbor)

My Favorite Site on Morgan :-)
(from Univ. of Kentucky)

What are linked genes?

Listen carefully to his lecture. There are no specific questions for this lecture.... but I do think it's important to understand how "linked genes" behave and why they end up violating predicted outcomes (i.e. messing up 9:3:3:1 ratios).

Crossing Over and Recombination: A Tool for Mapping Genes

Thomas Hunt Morgan was way cool!   Make sure you associate his name with fruit flies, genetics, linked genes, and especially sex-linked genes.

Please read about him (see links to the left). I'll ask some general questions about him on your next test.

Listen carefully to the lecture... Dr. Wolfe is setting you up for the following lectures involving T.H. Morgan and his discovery of sex-linked genes.

Gene Mapping Using Recombination Frequencies

For linked genes, the more distant the genes are from each other, the ______ (greater or lesser?) the likelihood of crossing over during meiosis?

Linking Genes to Chromosomes: The Work of Morgan

No assigned questions... good background information. Listen anyway so you understand how this sex-linked business was sorted out.

Morgan's Conclusions

You will have sex-linked genetics problems (several at least) to solve on your next test. Go through this lecture several times if necessary so you can work out sex-linked Punnet squares.