260 likes | 390 Views
Protein Synthesis. Write down 5 “things” that you know about DNA. What is a GENE?. Instruction manual for our body. They are the directions for building all the proteins that make our body function. Where is a Gene?. Within DNA The nitrogen bases spell out the instructions.
E N D
What is a GENE? Instruction manual for our body They are the directions for building all the proteins that make our body function
Where is a Gene? • Within DNA • The nitrogen bases spell out the instructions.
What is a TRAIT? A trait is a genetically determined characteristic
RNA Ribonucleic Acid Make up of Nucleotides Contains Phosphorus
RNA Nucleotide A Phosphate Nitrogen Base C B Guanine Cytosine Ribose Adenine Uracil
Types of RNA Messenger RNA Nickname: mRNA Made up of ONE strand of nucleotides
mRNA Function Copy a message from a gene on DNA DNA mRNA
Types of RNA Transfer RNA Nickname: tRNA Made up of ONE strand of nucleotides and a amino acid
tRNA Function Carries amino acids to mRNA Amino Acids mRNA
Types of RNA Ribosomal RNA Nickname: rRNA Made up of ONE strand of nucleotides mixed with the ribosome
rRNA Function Forms peptide bonds between the amino acids rRNA Peptide Bond Amino acid Amino acid Amino acid Amino acid
DNA versus RNA: # of Strands 2 strands 1 strand
DNA versus RNA: Sugar Deoxyribose Ribose
DNA versus RNA: Bonds with Adenine DNA RNA Adenine Thymine Adenine Uracil
Brief summary of Protein synthesis Make Proteins
Brief Summary of Transcription Make mRNA from a gene on DNA
Location of Transcription Nucleus
Process of Transcription DNA Backbone Nitrogen Bases T A C G C G C C T A G G A T T A G T A T G C G C G G A T C C T A A T C A RNA Polymerase RNA Polymerase attaches to DNA and breaks Hydrogen bonds; splitting DNA Choose a gene that needs to be “read” or copied
Process of Transcription DNA RNA Polymerase T A C G C G C C T A G G A T T A G T A U G C G C G G A U C C U A A T C A A T G C G C G G A T C C T A A T C A mRNA DNA is split apart; separated RNA polymerase adds matching nucleotides to exposed DNA strand Nitrogen Bases DNA Backbone A T G C G C G G A T C C T A A T C A
Process of Transcription DNA RNA Polymerase T A C G C G C C T A G G A T T A G T A T G C G C G G A T C C T A A T C A A U G C G C G G A U C C U A A U C A mRNA mRNA leaves the nucleus RNA Polymerase leaves DNA recombines A U G C G C G G A T C C T A A T C A mRNA Nitrogen Bases DNA Backbone A T G C G C G G A T C C T A A T C A
Transcription Animation #1Transcription Animation #2Transcription Video
Transcribe the following DNA TAC GGC AAA TAG GAT TTT CCA TTA AGT AUG CCG UUU AUC CUA AAA GGU AAU UCA mRNA