If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit: Molecular genetics

NGSS:
HS‑LS3.A

0

Possible mastery points

DNA structure and replication

Learn
Discovery of the structure of DNA
(Opens a modal)
DNA
(Opens a modal)
Molecular structure of DNA
(Opens a modal)
Antiparallel structure of DNA strands
(Opens a modal)
Leading and lagging strands in DNA replication
(Opens a modal)
DNA proofreading and repair
(Opens a modal)
DNA structure and replication review
(Opens a modal)
Practice
DNA structure and replicationGet 3 of 4 questions to level up!

RNA and protein synthesis

Learn
Molecular structure of RNA
(Opens a modal)
DNA replication and RNA transcription and translation
(Opens a modal)
Intro to gene expression (central dogma)
(Opens a modal)
The genetic code
(Opens a modal)
Impact of mutations on translation into amino acids
(Opens a modal)
RNA and protein synthesis review
(Opens a modal)
Practice
Transcription and translationGet 3 of 4 questions to level up!
Codons and mutationsGet 3 of 4 questions to level up!

Biotechnology

Learn
Introduction to genetic engineering
(Opens a modal)
Polymerase chain reaction (PCR)
(Opens a modal)
Gel electrophoresis
(Opens a modal)
DNA cloning and recombinant DNA
(Opens a modal)
DNA sequencing
(Opens a modal)
Can we clone extinct dinosaurs from DNA preserved in their fossils?
(Opens a modal)
Biotechnology review
(Opens a modal)
Practice
BiotechnologyGet 3 of 4 questions to level up!
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 400 Mastery points!

About this unit

DNA serves as the genetic material for all living organisms. Learn more about the structure and synthesis of this remarkable molecule, and how genes in your DNA provide instructions for building proteins.
Biology is brought to you with support from the Amgen Foundation