Warm-Up Monday Nov. 5, 2012 List the two components that make up the “backbone "of DNA.
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Warm-Up Monday Nov. 5, 2012 List the two components that make up the “backbone "of DNA.
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Transcript of Warm-Up Monday Nov. 5, 2012 List the two components that make up the “backbone "of DNA.
- Slide 1
- Warm-Up Monday Nov. 5, 2012 List the two components that make up the backbone "of DNA.
- Slide 2
- Warm- Up Tuesday Nov. 6, 2012 Define translation in your own words.
- Slide 3
- Protein Synthesis
- Slide 4
- Objectives 1.Define the term protein synthesis 2.Relate translation to the process of protein synthesis 3.Describe the role of RNA in protein synthesis
- Slide 5
- Protein Synthesis Synthesis = to make Protein synthesis = to make proteins Translation = process of synthesizing proteins
- Slide 6
- Translation: Review Translation = process of decoding mRNA to produce a sequence of amino acids in a chain (protein) mRNA = messenger RNA Amino Acids = building blocks of DNA Location: cytoplasm
- Slide 7
- Translation: Review Which process must occur before translation can take place?
- Slide 8
- Translation 1) mRNA attaches to ribosome 2) tRNA brings amino acids (a.acids) to ribosome 3) A. acids attached along assembly line 4) Continues until a stop codon is reached
- Slide 9
- Translation: making proteins from amino acids
- Slide 10
- Making Proteins Sequence of nucleotides = instructions for the order of amino acids Proteins = long chain of a. acids Code is read 3 letters at a time
- Slide 11
- Codon = sequence of three nucleotides in DNA & RNA Each codon codes for proper amino acid Example: AUG-CGU-AAC-UGA
- Slide 12
- Codons Start codon- "AUG" - Methionine Signals initiation translation Initiation = start Stop Codon- "UAG, UAA, and UGA" Signals termination translation Termination = stop
- Slide 13
- Review: RNAs role in Protein Synthesis Type RNAAbbreviationFunction Messenger RNA mRNACarry copies of instructions for making proteins Ribosomal RNArRNAMakes up ribosomes Transfer RNAtRNABrings specific a.acids to ribosome according to mRNA instructions
- Slide 14
- DNA Rap http://www.dnatube.com/video/3446/BioRap-DNA- Replication-and-Protein-Synthesis-with-a-Beat
- Slide 15
- Avid Thinking Strategy: Protein Synthesis Rap/Rhyme Directions (#11 on pg 11) - Concept: Protein Synthesis - Rap/Rhyme requirements: 1) Title (reflects main concept of poem) 2 ) Minimum 2 stanzas 4 lines each ( grouping of lines, set off by a space, that usually has a set pattern of meter and rhyme) 3) Illustration depicting concept of poem (2 colors) 4) 4 sentence explanation explaining how the song & illustration demonstrate the concept of protein synthesis
- Slide 16
- Warm Up Wednesday Nov. 7, 2012 1. Define the word codon. 2. List one START codon and one STOP codon.
- Slide 17
- Warm Up Thursday Nov. 8, 2012 What organelle does translation occur in?
- Slide 18
- Chromosomal Mutations
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- Objectives 1. Define chromosomal mutation. 2. List and discuss common chromosomal mutations found in the human body.
- Slide 20
- Chromosomal Mutations = change in the # or structure of chromosomes 4 types: 1) Inversion 2) Translocation 3) Deletion 4) Duplication
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- 1) Inversion = segment of chromosome breaks off & is reinserted in the same place but in reverse direction Causes increased risk of miscarriages
- Slide 22
- 2) Translocation = one of 2 homologous chromosomes breaks & binds to the other Causes cancer & Infertility Very deadly
- Slide 23
- 3) Deletion = Lose portion of chromosome Example: Wolf-Hirschhorn Syndrome
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- Wolf-Hirschhorn Syndrome Description: condition that is caused by a missing part (deletion) of the short arm of chromosome 4 Symptoms: Severe developmental delays Characteristic facial appearance Seizures Variety other birth defects
- Slide 25
- 4) Duplication = portion chromosome copied, resulting in extra genetic material Example: Charcot-Marie-Tooth Disease
- Slide 26
- Charcot-Marie-Tooth Disease Description: Progressive loss of muscle tissue and touch sensation across various parts of the body Symptoms: muscle weakness decreased muscle bulk Tends to slowly worsen over time
- Slide 27
- Avid Thinking Strategy: Letter to the Editor Directions (#13 pg 11) Concept: Chromosomal Mutations Letter Requirements: 1) 2-3 paragraphs (minimum 5 sentences each) 2) Write a letter about why mutations are harmful to humans 3) Use the new vocabulary words learned (in notes) 4) You must state an opinion and use 5 specific facts to support that opinion. 5) There must be an illustration depicting the concept of mutations.
- Slide 28
- Warm Up Friday Nov. 9, 2012 What organelle does transcription occur in?