Future geneticists use base pairing rules to build DNA and RNA polypeptide strands, and then explain both transcription and translation. Although the chains themselves are a little blurry, there is plenty of room in them for learners to...

By counting differences in amino acids, biology stars examine the relationships between different primates. With information gleaned, they map out a phylogenic tree and discover common ancestry. You will need to create printable versions...

In this online interactive biology crossword puzzle instructional activity, students use the 8 clues to find the appropriate answers to complete the word puzzle.

In this online interactive biology crossword puzzle learning exercise, students use the 5 clues to find the appropriate answers to complete the word puzzle.

In this online interactive biology crossword puzzle worksheet, students use the 5 clues to find the appropriate answers to complete the word puzzle.

A fantastic interactive laboratory in which transgenic flies are created and used to study circadian rhythms. Excellent supporting information and resources for teachers and students.

[Free Registration/Login may be required to access all resource tools.] Overview of the central dogma of molecular biology.

Take an interactive quiz over biochemistry and organic chemistry. After completing the quiz, check your score, and then revisit any incorrect question for further review.

This site from the University of Massachusetts links to downloadable freeware (Rasmol and CHIME) which are required to view 3-D images common on organic chemistry tutorials.

Explore cell and molecular biology online. Investigate career issues, message boards, and articles.