From Dna To Protein
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View From Dna To Protein as PDF for free.
More details
- Words: 328
- Pages: 14
11.2 From DNA to Protein
Genes & Proteins • Nucleotide sequence contains information to make proteins • Proteins are polymers of amino acids (made of chains of amino acids) • Proteins are made on ribosomes
Shape of Protein determines its function • Proteins fold into complex, 3-D structures to function inside the cell • Examples: – enzymes that break down food – Hemoglobin carries O2 in RBC
Transcription • Transcription is the process of making RNA from DNA
RNA vs. DNA • Similarities: – Both are nucleic acids – Both are polymers made of nucleotides • Differences:
Transcription • http://www.stolaf.edu/people/giannini /flashanimat/molgenetics/transcriptio n.swf
From DNA to RNA • RNA polymerase binds to the beginning (promoter) of a specific gene. • Free RNA nucleotides form base pairs with their complementary nucleotides on the DNA strand (the template strand) • RNA transcription ends when a terminator sequence on the DNA template is reached. • RNA strand breaks away, & the DNA strand rejoins
3 Types of RNA
• Messenger RNA (mRNA)composed of a single nucleotide strand. mRNA carries genetic information from the nuclear DNA to the ribosomes in the cytoplasm. • Transfer RNA (tRNA) is a single chain of about 80 nucleotides, folded into a hairpin shape. Different tRNAs bind to specific amino acids . • Ribosomal RNA (rRNA) nucleotides are joined by proteins into a globular form to make up ribosomes.
RNA processing • Genes contain coding (exons, expressed) and non-coding (introns, intervening) regions
Translation
• http://www.stolaf.edu/people/giannini/flas
Translation from mRNA to Protein
The mRNA Genetic code • There are 20 AA. • There are 64 different mRNA codons (group of 3 nitrogenous bases on mRNA) • Start codon is AUG, codes for the AA methionine • Stop codons are UAG, UGA, UAA • All organisms use the same genetic code
Lets practice making proteins DNA template ATT mRNA transcript (codons) tRNA anticodons Protein A.A. seq.
TAC GGG CGT TTA AAT CCG ATC
Warm up • Complete the DNA extraction w/s
Genes & Proteins • Nucleotide sequence contains information to make proteins • Proteins are polymers of amino acids (made of chains of amino acids) • Proteins are made on ribosomes
Shape of Protein determines its function • Proteins fold into complex, 3-D structures to function inside the cell • Examples: – enzymes that break down food – Hemoglobin carries O2 in RBC
Transcription • Transcription is the process of making RNA from DNA
RNA vs. DNA • Similarities: – Both are nucleic acids – Both are polymers made of nucleotides • Differences:
Transcription • http://www.stolaf.edu/people/giannini /flashanimat/molgenetics/transcriptio n.swf
From DNA to RNA • RNA polymerase binds to the beginning (promoter) of a specific gene. • Free RNA nucleotides form base pairs with their complementary nucleotides on the DNA strand (the template strand) • RNA transcription ends when a terminator sequence on the DNA template is reached. • RNA strand breaks away, & the DNA strand rejoins
3 Types of RNA
• Messenger RNA (mRNA)composed of a single nucleotide strand. mRNA carries genetic information from the nuclear DNA to the ribosomes in the cytoplasm. • Transfer RNA (tRNA) is a single chain of about 80 nucleotides, folded into a hairpin shape. Different tRNAs bind to specific amino acids . • Ribosomal RNA (rRNA) nucleotides are joined by proteins into a globular form to make up ribosomes.
RNA processing • Genes contain coding (exons, expressed) and non-coding (introns, intervening) regions
Translation
• http://www.stolaf.edu/people/giannini/flas
Translation from mRNA to Protein
The mRNA Genetic code • There are 20 AA. • There are 64 different mRNA codons (group of 3 nitrogenous bases on mRNA) • Start codon is AUG, codes for the AA methionine • Stop codons are UAG, UGA, UAA • All organisms use the same genetic code
Lets practice making proteins DNA template ATT mRNA transcript (codons) tRNA anticodons Protein A.A. seq.
TAC GGG CGT TTA AAT CCG ATC
Warm up • Complete the DNA extraction w/s
Related Documents
From Dna To Protein
December 2019 29
From Dna To Protein
November 2019 20
From Dna To Protein
May 2020 18
From Gene To Protein
December 2019 14
Dna Protein Cross Linking
November 2019 29
Cro Protein-dna Interactions
December 2019 27More Documents from "vijay"
The Circulatory System
April 2020 18
Water
November 2019 46
35.1 - The Digestive System
May 2020 23
The Urinary System
May 2020 21
