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33 Cards in this Set
- Front
- Back
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name the 2 types of nucleic acids?
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dna, rna
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what stores, expresses & transports genetic information?
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nucleic acids
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where is dna found?
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nucleus
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a nucleotide is what?
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repeating units of rna & dna
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in rna, thymine is replaced by?
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uracil
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what is an rna strand made of?
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phosphate group, sugar and a base
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rna has __ strand(s)
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1
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dna has __ strand(s)
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2
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What is the sequence of 3 nucleotide bases that code for a single amino acid?
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base triplet
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What is defined as the genetic code that is use by ALL living forms?
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universality
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what is the joining of 2 amino acids to form proteins called?
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protein synthesis
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name the 2 major steps of protein synthesis (in order)
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transcription and translation
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what is defined as the formation of mRNA from a DNA template?
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transcription
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what is defined as the formation of protein from an RNA template?
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translation
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Anything ending in -ase is an..?
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enzyme
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What sequence of bases in DNA indicate which strand is to be copied and where the gene begins?
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the promotor
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there are free rna nucleotides where?
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nucleus
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bases of rna nucleotides attach to?
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exposed bases of dna chain
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base triplet in dna is also called?
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codon
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thymine is complimentary to
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adenine
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cytosine is complimentary to
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guanine
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adenine in rna is complimentary to?
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uracil
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name the sub-units in "translation"
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large and small
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name the 2 components of translation that will be joined together?
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amino acids and ribosomes
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where is tRNA synthesized?
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nucleus
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A sequence of 3 bases on a tRNA that are complimentary to the 3 bases in the mRNA codon are called?
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Anticodon
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during termination, a _____ is released from the last tRNA and is free
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polypeptide
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many copies of the same protein can be made simultaneously, this process is called?
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amplification
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during the process of translation, a peptide bond forms between the 2 _____ ______ that are being held side by side
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amino acids
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what contains 1 original strand and 1 nascent(newborn) strand?
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each new DNA
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what is the only molecule capable of reproducing itself?
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dna
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during dna replication, the 2 molecules are identical to the original because of _______ _______ _______
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complimentary base pairing
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what enzyme is responsible for "unzipping" the DNA double helix
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polymerase
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