DNA - chapter 2

Complementary Base Pairing

takes place between base paris in DNA, DNA replication or RNA

Semi-conservative Replication

five prime to three prime

reading indication for DNA sequence

RNA

ribose nucleic acid important for protein synthesis

Uracil

base found in RNA bind A

Exon

section of coding DNA which carries sequences of bases

Intron

section of 'non-coding' DNA which carries a non-coding sequence of bases

Coding

each gene's code uses the four nucleotide bases of DNA

Non-coding

does not code for protein

Synthesis

process whereby deoxynucleic acids

DNA Polymerase

the enzyme that catalyses the production of a new DNA strand during replication

Transcription

DNA makes a working copy of mRNA

Translation

2nd stage at ribosomes base sequence in mRNA is used to make amino acid sequence

Polypeptide

a long chain of amino acids held together by peptide bonds

Coding Strand

the strand of DNA that is not used for transcription and is identical in sequence to mRNA, except it contains uracil instead of thymine

Template Strand

The DNA strand that provides the template for ordering the sequence of nucleotides in an mRNA transcript

mRNA

type of RNA transcribed from DNA containing imfo on sequence of amino acids

tRNA

a molecule that carries specific amino acid into position during the process of translation

tRNA binding mRNA

tRNA has an anti-codon that binds to mRNA codon

microRNA

a type of RNA that can interfere with the translation of mRNA

rRNA

RNA that is usually associated with proteins and found in ribosomes

Amino Acid

a molecule that can be joined by peptide bonds to make polypeptides or proteins

Ribosome

an organelle in cytoplasm which has vital role in translation

Codon

three base sequence on mRNA, DNA provides code for particular amino acid

Anticodon

three base sequence on the transfer RNA molecule that is complementary to a mRNA c