No Picture

What does ‘allele’ mean?

The word allele, in the study of inheritance, means a single copy of a gene. It is pronounced uh-LEEL. Its usage implies that there are…

No Picture

What is a Punnett square?

Biologists who study inheritance patterns, genetic counselors, and you (apparently) need to bridge the gap between DNA and some of life’s questions, like “What crop…

No Picture

USA Biology Olympiad Prelims

The USA Biology Olympiad, sponsored by the Center for Excellence in Education, will be conducting the initial round of tests, administered in your high school,…