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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.
Khan Academy
Khan Academy: Nucleic Acids
Discover the structure and function of DNA and RNA, and understand nucleotides and polynucleotides.
Khan Academy
Khan Academy: One Gene, One Enzyme
Learn about these historical experiments having to do with genes being connected to enzymes: Garrod's studies of alkaptonuria and Beadle and Tatum's work with Neurospora mutants.
Khan Academy
Khan Academy: Stages of Transcription
An in-depth looks at how transcription works including initiation, elongation, and termination.
Khan Academy
Khan Academy: The Genetic Code
Learn how genetic code links groups of nucleotides in an mRNA to amino acids in a protein. Also learn about start codons, stop codons, and reading frame.
Khan Academy
Khan Academy: T Rn as and Ribosomes
Learn about structure and roles of transfer RNAs and ribosomes including codons, anticodons, and wobble. Also find out about Aminoacyl-tRNA synthetases.
Khan Academy
Khan Academy: Protein Targeting
Learn how molecular labels are used to direct proteins to different parts of the cell and to the cell exterior.
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.