Swetz's Science Corner

Mr. Swetz's Biology and Genetics classes.

In the News

Be Cool...Know Your News:

There is a great article in the Science section of the NY Times that talks about the fossils of a bird that Kermit the Frog wouldn't like too much. See if you can find it!

Meet the Challenge!

For the Genetics Class! First to email the correct response will recieve five points on the next test!

Levy and Levin (1975) used electrophoresis to study the phosphoglucose isomerase-2 locus in the evening primrose Oenothera biennis. . . They observed two alleles affecting electrophoretic mobility of the enzyme, PGI-2a and PGI-2b. In 57 strains, they observed 35 PGI-2a/PGI-2a, 19 PGI-2a/PGI-2b, and 3 PGI-2b/PGI-2b. . . Calculate the expected numbers of the three genotypes . . . assuming that the genotypes occur in Hardy-Weinberg proportions



Hartl, D.L. (1983). Human Genetics. Harper & Row,

Publishers, New York. pp. 484-485.

Last week's answer: The trait exhibits Co-dominance

Last week's winner: Garrett Fulmer