CK-12 Foundation
Ck 12: Nucleic Acids
[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...
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Biology: Rna Splicing
A step-by-step animation shows how introns are removed during RNA splicing.
Cold Spring Harbor Laboratory
Biology Animation Library: Dolan Dna Learning Center
A step-by-step animation shows how introns are removed during RNA splicing.
Nobel Media AB
The Nobel Prize: Severo Ochoa Biographical
Read about the 1959 co-recipient of the Nobel Prize in Physiology -- Severo Ochoa -- who contributed to the "discovery of the mechanisms in the biological synthesis of ribonucleic acid and deoxyribobucleic acid."
BiologyWise
Biology Wise: Codon Chart
Explains the workings of the codon translation chart which provides the keys to the structure of amino acids. Includes a widget where one can input a nucleotide triplet combination and see which amino acid it represents. Includes RNA and...
Khan Academy
Khan Academy: Eukaryotic Pre M Rna Processing
Learn about the role of the chemical groups on the ends of the pre-mRNA called the 5' cap and poly-A tail. Also learn about splicing, introns, and exons.
CK-12 Foundation
Ck 12: Biology: Nucleic Acids
[Free Registration/Login may be required to access all resource tools.] Covers the structure and function of nucleic acids.
CK-12 Foundation
Ck 12: Central Dogma of Molecular Biology
[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.
Khan Academy
Khan Academy: Nucleic Acids
Discover the structure and function of DNA and RNA, and understand nucleotides and polynucleotides.
CK-12 Foundation
Ck 12: Transcription of Dna to Rna
[Free Registration/Login may be required to access all resource tools.] The process of transcription is defined and discussed in protein synthesis. Students will learn about mRNA processing and know the significance of polyadenylation.
Science Museum, London
Science Museum: Making the Modern World: Dna: Structure and Function
The learning module helps students gain a deeper understanding of the structure and function of DNA.
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Transcription Translation: Transcription Advanced
Visualize the main driving force behind molecular biology, where DNA makes RNA, and RNA makes protein. [1:53]
Khan Academy
Khan Academy: Intro to Gene Expression (Central Dogma)
Learn how genes in DNA can provide instructions for proteins. Understand the central dogma of molecular biology: DNA, RNA, protein.
University of Arizona
University of Arizona: Introduction to Dna Structure
A tutorial on the structure of DNA. Meant as a companion to a biology course, a grasp of basic DNA terminology is essential for the reader.
BiologyWise
Biology Wise: What Is a Stop Codon?
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.
CK-12 Foundation
Ck 12: Biology: Transcription of Dna to Rna
[Free Registration/Login may be required to access all resource tools.] Discusses transcription in protein synthesis.
Khan Academy
Khan Academy: Overview of Transcription
Find out about the process of transcription, where the DNA sequence of a gene is transcribed to make an RNA molecule.
CK-12 Foundation
Ck 12: Biology: Central Dogma of Molecular Biology
[Free Registration/Login may be required to access all resource tools.] Overview of the central dogma of molecular biology.
CK-12 Foundation
Ck 12: Biology: Transcription of Dna to Rna
[Free Registration/Login may be required to access all resource tools.] Discusses transcription in protein synthesis.
BiologyWise
Biology Wise: The Northern Blot vs. Southern Blot Technique
The Northern blot and the Southern blot are two methods used to analyze DNA and RNA. Each technique is described, its purpose, and the methodology. A table comparing features of each is provided.
University of Arizona
The Biology Project: Immunology: Eukaryotic Gene Expression Problem Set
Students have the opportunity to work through a problem set over Eukaryotic genes. Correct answers are reinforced with a brief explanation. Incorrect answers are linked to tutorials to help solve the problem.
Nature Research
Scitable: Genomics
Get an in-depth look at the genome which includes all genes, regulatory sequences, and other information found in noncoding regions of DNA. Articles on webpage explores the large amount of information available about genes and DNA...
Science Struck
Science Struck: Ribose vs. Deoxyribose
Explains what ribose and deoxyribose are, their chemical structure and properties, similarities and differences, their functions, and their biological importance.
Ducksters
Ducksters: Biology for Kids: Chromosomes
Explore the topics of chromosomes in the science of biology including what they do, DNA, alleles, genes, proteins and human chromosomes on this site.