Gene Expression

RNA synthesis: process of making mRNA from DNA

• Transcription

• Translation

• Mutation

protein synthesis; using mRNA to determine sequence of amino acids

• Translation

• Transcription

• mutation

where does transcription occur

• nucleus

• cytoplasm

• at ribosome

• at ribosomes in the cytoplasm

where does translation occur

• in nucleus

• in nucleolus

• in cytoplasm

• at ribosomes in the cytoplasm

what does adenine bond to in RNA Synthesis

• Thymine

• Uracil

how many nucleotides are in a codon

• 3

• 2

• 1

• 6

how many codons make up an amino acid

• 1

• 3

• 4

• 6

binds to DNA at specific sequence of nucleotides, pries the 2 strands of DNA apart and adds RNA nucleotides

• DNA Polymerase

• RNA Polymerase

• mRNA

• Polypeptides

• Amino Acids

mRNA made directly from DNA template is called...

• primary transcript

• secondary transcript

• exons

• intron

• final transcript

mRNA can't leave the nucleus till

• 5' cap is added to the 5' end

• poly-A tail is added to the 3' end

• RNA is spliced

• DNA is spliced

• poly-A tail is added to the 5' end