2 articles
16 videos
1 skill
1B: DNA makes RNA, and RNA makes protein - in a nutshell, this is the central dogma of molecular biology. Let’s delve into that simple notion here so we can come to a better understand of the flow of genetic information.

DNA questions

DNA questions

Nucleic acid structure 1

VIDEO 10:03 minutes

Nucleic acid structure 2

VIDEO 11:39 minutes

Telomeres and single copy DNA vs repetitive DNA

VIDEO 5:34 minutes
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for ...

How DNA is replicated 1

VIDEO 5:35 minutes

How DNA is replicated 2

VIDEO 8:49 minutes

Transcription 1

VIDEO 12:06 minutes

Transcription 2

VIDEO 8:43 minutes

The genetic code

VIDEO 6:48 minutes
How do nucleotides in RNA get translated into amino acids in a protein? The key is the genetic code, which shows the corresponding amino acid for each possible combination of three nucleotides (codon).

Protein translation 1

VIDEO 9:37 minutes

Protein translation 2

VIDEO 10:53 minutes

DNA repair 1

VIDEO 11:16 minutes

DNA repair 2

VIDEO 9:18 minutes

Protein modifications

VIDEO 15:43 minutes

Jacob Monod lac operon

VIDEO 11:58 minutes