Central Dogma of Molecular Biology

Central Dogma of Molecular Biology - cell where it is...

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Central Dogma of Molecular Biology Protein synthesis requires two steps: transcription and translation . DNA contains codes Three bases in DNA code for one amino acid. The DNA code is copied to produce mRNA. The order of amino acids in the polypeptide is determined by the sequence of 3-letter codes in mRNA. DNA vs RNA DNA RNA Sugar: deoxyribose ribose Bonds with Adenine: thymine uracil # of Strands: two one Kinds of RNA Messenger RNA (mRNA) Messenger RNA contains genetic information. It is a copy of a portion of the DNA. It carries genetic information from the gene (DNA) out of the nucleus, into the cytoplasm of the
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Unformatted text preview: cell where it is translated to produce protein. Ribosomal RNA (rRNA) This type of RNA is a structural component of the ribosomes. It does not contain a genetic message. Transfer RNA (tRNA) Transfer RNA functions to transport amino acids to the ribosomes during protein synthesis. Transcription Transcription is the synthesis of mRNA from a DNA template. It is like DNA replication in that a DNA strand is used to synthesize a strand of mRNA. Only one strand of DNA is copied. A single gene may be transcribed thousands of times. After transcription, the DNA strands rejoin....
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Central Dogma of Molecular Biology - cell where it is...

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