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27 Cards in this Set
- Front
- Back
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what are 3 parts of the nucleotide
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5 carbon sugurs (dexiribose)
phosphate groups nitroginous bases |
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what is the function of DNA
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contains the blueprint for producing the whole organism
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what is the structure of DNA called
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double helix
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what makes up the ladder steps
what makes up the sides |
nitrogenous bases
phospahte group and dexiribose |
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what is the sugur in DNA
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dexiribose
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what is the sugur in DNA
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ribose
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where does repilication occur in a cell
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nucleous
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why does DNA replication occur
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insures that each resulting cell receives a complete set of DNA nuclitides
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when does DNA replication occur
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before a cell divides
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where do the strands sperate in DNA replication
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replication forks
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in the DNA molecule what bonds hold the nitrogenous bases together
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the oppistite strand of nucleotides
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what bonds hold the amino acids together in a protein
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hydrogen bands
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what part of the nuclide provides the code for proteins
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nitrogenous base
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shift the reading frame of a genitic message
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frameshift mutation
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effects the whole chromosme
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chromosomal mutation
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RNA molecules are produced by copying a part of the nucleous
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transcription
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where does transription occur
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nucleous
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decoding of an mRNA message into a polypeptide chain
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translation
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where does translation occur
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ribosomes
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where are chromosomes found in the cell
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nucleous
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what is a gamete and give 2 examples
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sex cellls
sperm and eggs |
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mutations that produce changes in a single gene
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gene mutaion
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carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cells
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mRNA (messenger)
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transfers amino acids to ribosomes during protein sythesis
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tRNA (transfer)
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e muclitide sequences on mRNA that codes for a single amino acid
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codon
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group of 3 bases on tRNA that are complentary to an mRNA codon
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anticodon
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how would a scientist determine that a mutation has occured
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lookin at the DNA and chromosomes
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