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This video (12:59) is tenth in the Crash Course Biology series. It covers molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells.Table of Contents:1) Nucleic Acids 1:302) DNA-A) Polymers 1:53-B) Three Ingredients 2:12-C) Base Pairs 3:45-D) Base Sequences 4:133) Pop Quiz 5:074) RNA 5:36-A) Three Differences from DNA 5:435) Biolography 6:166) Replication 8:49-A) Helicase and Unzipping 9:22-B) Leading Strand 9:38-C) DNA Polymerase 10:08-D) RNA Primase 10:24-E) Lagging Strand 10:46-F) Okazaki Fragments 11:07-F) DNA Ligase 11:47


  • Science > General
  • Science > Biology
  • Science > Life Sciences

Education Levels:

  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


DNA deoxyribonucleic acid chromosome nucleic acid ribonucleic acid RNA polymer nucleotide double helix nucleotide base base pair base sequence friedrich miescher rosalind franklin replication helicase leading strand lagging strand rna primase dna polymerase okazaki fragment



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial
Update Standards?

SCI.9-12.SC.912.L.16.A: Science

DNA stores and transmits genetic information. Genes are sets of instructions encoded in the structure of DNA.

SCI.9-12.SC.912.L.16.3: Science

Describe the basic process of DNA replication and how it relates to the transmission and conservation of the genetic information.
Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2014-08-06.

Component Ratings:

Technical Completeness: 3
Content Accuracy: 3
Appropriate Pedagogy: 0

Reviewer Comments:

Brothers John and Hank Green have created these engaging and accurate “crash course” videos on topics ranging from chemistry to world history, biology, literature, and ecology.  Each video is 10 – 15 minutes long and suitable for all ages, though the content (and humor) may be better suited for middle school through adult learners.  You can learn more about the specific contents of this particular video (from the Biology collection) by clicking the information tab above.  These videos serve multiple purposes well from use in the classroom to facilitating one’s own lifelong learning.  
Curriki Review System
August 6, 2014

This video is part of the larger collection called Crash Course Biology. You can learn more about this collection by reading its review and comments. You can also find the most recent Crash Course videos in all subjects at the Crash Course YouTube channel .

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