DNA
- Created by: G-girl
- Created on: 08-12-12 18:38
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- 2. DNA uncoils
- DNA
- PROTEIN SYNTHESIS
- TRANSLATION (occurs at ribosome in cytoplasm)
- 1. tRNA carry amino acids to ribosome
- 2. tRNA attach to mRNA through complementary base pairing
- 3. Two amino acids joined by peptide bonds
- 4. tRNA moves away, leaving amino acid behind
- 5. Polypeptide chain formed
- 6. Polypeptide chain moves away, translation is complete
- 5. Polypeptide chain formed
- 4. tRNA moves away, leaving amino acid behind
- 3. Two amino acids joined by peptide bonds
- TRANSCRIPTION (occurs in nucleus)
- TRANSLATION (occurs at ribosome in cytoplasm)
- DNA= 2 polynucleotide strands, deoxyribose sugar
- RNA= 1 polynucleotide strand, ribose sugar
- two complementary base pairs join by hydrogen bonding between the bases.
- 2 DNA strands wind up to form the DNA double helix
- MONO-NUCLEOTIDE
- MONO NUCLEOTIDE = pentose sugar, phosphate group, nitrogenous base
- joined through condensation reactions between the phosphate group and the sugar group. Water is a by-product in condensation reaction
- SELF-REPLICATION
- 1. Hydrogen bonds break
- 2. DNA helix uncoils
- 3. DNA strand used as a template
- 4. Mononucleotide joins template strand by complementary base pairing
- 5. Mononucleotide on new strand joined together by the enzyme DNA polymerase
- 6. Hydrogen bonds form between the bases
- 7. each new strand contains 1 original and 1 new strand
- 6. Hydrogen bonds form between the bases
- 5. Mononucleotide on new strand joined together by the enzyme DNA polymerase
- 4. Mononucleotide joins template strand by complementary base pairing
- 3. DNA strand used as a template
- 2. DNA helix uncoils
- 1. Hydrogen bonds break
- BASES
- Guanine
- Thymine (replaced by Uracil in RNA)
- Cytosine
- Adenine
- bases join by complementary base paring (A-T) (C-G)
- Untitled
- MESELSON & STAHL
- 1. two samples grown. 1 light, 1 heavy
- PROTEIN SYNTHESIS
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