Review for your MCAT by watching this video on the different types of genetic mutations. [5:52]

RNA may have been the origin of life on Earth. Go on a whirlwind tour of RNA's evolving role through billions of years of evolutionary history. [3:02]

This lesson will discuss the structure and function of both rough and smooth endoplasmic reticulum. It is 2 of 6 in the series titled "Endoplasmic Reticulum."

This lesson identify the structure and function of nucleic acids.

This lesson will explain how the process of transcription is used to create RNA, complementary to a cell's DNA. It is 1 of 3 in the series titled "Transcription."

This lesson will explain how the process of translation is used to create proteins from RNA. It is 1 of 3 in the series titled "Translation."

This lesson will introduce codons, and describe how they are used in protein synthesis. It is 3 of 5 in the series titled "Codons."

This lesson will introduce codons, and describe how they are used in protein synthesis. It is 1 of 5 in the series titled "Codons."

Paul Andersen introduces the nucleic acids of life; RNA and DNA. He details the history of DNA from Griffith, to Avery, to Hershey and finally to Watson and Crick. He also details the difference between prokaryotic and eukaryotic...

Paul Andersen continues his description of DNA and RNA. He begins with the structure of DNA and RNA and moves into the process of DNA Replication. He also describes the central dogma of biology explaining how DNA is transcribed to mRNA...