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33 Cards in this Set

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