Using a bead-bracelet simulation, construct a sequence of amino acids. Then, discover the effects of silent, point, and frameshift mutations.

[Free Registration/Login may be required to access all resource tools.] This module states and explains the central dogma of molecular biology which was conceived by Francis Crick.

This lesson focuses on how genes, sections of the DNA, are formed including descriptions of transcription and translation. It provides links to a video and a test.

Learn how genes in DNA can provide instructions for proteins. Understand the central dogma of molecular biology: DNA, RNA, protein.

Learn about transcription using this visual graphic and detailed list of the various steps that take place during the process.

[Free Registration/Login may be required to access all resource tools.] Online activity covers the structure and function of nucleic acids. Students will learn about nucleotides, the different types of nitrogenous bases, and the...

[Free Registration/Login may be required to access all resource tools.] In ths module, discover the structure of a single nucleotide and how that structure leads to the overall structure of DNA and RNA.

Students will learn about the different types of mutations and how they work. They will compare the effect of these different types of mutations in DNA, including nucleotide substitution, nucleotide insertion, and nucleotide deletion....

Decent text based description of transcription. Good background.

[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of nucleic acids.

A start codon is a nucleotide triplet in a genetic sequence that occurs at the start of a protein's synthesis. Read about how this works and how a mutation can sometimes occur.

Try this interactive module from the Brooklyn College to help understand the genetic code and how changes in the code effect the final protein product.

Read a passage about early experiments on the genetic code and answer the follow-up questions.

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

Get the big picture of eukaryotic gene regulation, and learn how different genes are expressed in different cell types.

[Free Registration/Login may be required to access all resource tools.] This article complete with labeled diagrams, key vocabulary terms, and review questions explains the different factors involved in transcription.

A stop codon is a nucleotide triplet in messenger RNA that signals the end of a protein during the translation process. Read about how this works, the different types of stop codons, and how a mutation can sometimes occur.

Try these nineteen questions which serve as a chapter review over concepts in molecular genetics.

Try this quiz about RNA and the origin of life.