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Good notes for test one from noteswap - enotypes should...

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-ase= protein (speeds up chemical reaction g pulation owing to selecting on heritable variation among phenotypes that changes the genotypic construction of the population Notice that: p+q=1 p=q-1 q=1-p enotypes should occur in the population according to: 2 + 2pq + q 2 = 1 2 = proportion of population homozygous 1 st allele (RR) pq= proportion of population heterozygous (Rr) 2 = proportion of population homozygous 2 nd allele (rr) Review from Bio 1201 I. How are genes and proteins related? Genes determine protein structure o Protein structure determines way processes of life are carried out 1. gene   RNA to make protein (DNA RNA protein) 2. gene= segment of DNA located at a particular place on  chromosome 3. DNA codes for specific amino acid sequence in a protein or for the  RNA that helps make proteins DNA     Double stranded Deoxyribose RNA     Single stranded Ribose (sugar on backbone) - Three types of RNA     1. mRNA- messenger RNA 2. rRNA- contained in ribosomes large subunit- contain tRNA docking sites small subunit 3. tRNA- transfer RNA - Information Flow    DNA--------  RNA-------  proteins          Transcription       translation            (nucleus)            (cytoplasm) RNA polymerase makes RNA (polymer)
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DNA polymerase makes DNA (polymer) II. Info in Gene transcribed into RNA - Transcription o Initiation tRNA connected to small subunit of rRNA- makes  complex tRNA is UAC (anticodon) with MET connect to  combine to AUG on mRNA large ribosomal subunit connects to small subunit- makes  ribosome o Elongation- RNA polymerase reads on strand DNA  Second tRNA connect anticodon to codon and MET and  second amino acid connect by peptide bond (using ATP) After two amino acids join, move to 1 st  site leaving 2 nd  site  empty for next tRNA tRNA keeps binding anticodon to codon and amino acids  joined by peptide bonds o Termination
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Stop codon; ribosome falls off - Gene begins where RNA shortest; ends where RNA longest III. Sequence of Messenger RNA translated into Protein - language barrier o nucleic acids DNA- 4 nucleotides RNA- 4 nucleotides o Proteins- 20 amino acids - Generic code o Codon Triplet of nucleotides Codes for one amino acid IV. Mutation 1. Any change in sequence of bases in DNA
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This note was uploaded on 08/29/2010 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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Good notes for test one from noteswap - enotypes should...

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