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17 Cards in this Set
- Front
- Back
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sketch the DNA structure
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What are the 4 bases (nucleotides)
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Guanine, Thymine, Cytosine,Adenine
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Which bases are in Purines
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Guanine and Adenine
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Which Bases are in Pyrimidines
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Cytosine, Thymine
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What is a DNA aka
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polynucleotide
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What is the backbone of the DNA made up of?
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Phosphate and Sugar
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How are the strands held together
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by the hydrogen bonds between the bases
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How many hydrogen bonds do A and T form
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2 bonds
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How many hydrogen bonds do G and C form
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3 hydrogen bonds
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Where are DNA found in?
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Chromosomes
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What are the steps for replication?
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1)unzipping (weak hydrogen bonds break between the base pairs)
2) complimentary base pairings 3) joining of adjacent nucleotides |
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What is the name of the enzyme that helps with the replication of DNA?
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DNA polymerase
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is a parent strand a template for a daughter strand
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yes
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Difference between DNA and RNA
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What is a gene?
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a segment of DNA that specifies the amino acid sequence of a protein
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What are the 3 types of RNA
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messenger RNA,
ribosomal RNA transfer RNA |
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What do each of the 3 types of RNA do?
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mRNA: takes message from DNA to the ribosomes
rRNA: along with proteins, makes up the ribosomes, where proteins are synthesized tRNA: transfers amino acids to the ribosomes |
