ASCP MOLECULAR BIOLOGY CERTIFICATION
EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
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Terms in this set (321)
Pyrimidine One carbon ring
Cytosine, Thymine, Uracil
Purine Two carbon rings
Adenine, Guanine
How are nucleotides joined Condensation to form phosphodiester bond
together?
, What is the function of mRNA? Carries genetic info out of nucleus
Transcript translated to protein
What is the function of tRNA? Carries aa to ribosome
Anticodon pairs with codon on mRNA strand
What is the function of rRNA? part of ribosome structure
most abundant RNA
coordinated coupling of tRNA to mRNA codons
Feedback inhibition Product of pathway is noncompetitive inhibitor
Binds to allosteric site to slow down rxn b/c too
much product
Exonucleases Degrades nucleic acids by removing one terminal nt
at a time
Cleaves phosphodiester bond at end of chain
5' --> 3' and 3' --> 5'
Endonucleases (Prok) Restriction enzymes
Cleaves phoshpodiester bonds w/i poly-nt chain
Recognition site is palindromic sequence
Types I-V
ORI sites nt sequence where replication is initiated
Topoisomerase I Induces ss breaks
Remove DNA supercoils during TXN and DNA
replication; for strand breakage during
recombination; for chr condensation; and to
disentangle intertwined DNA during mitosis
topoisomerase II cuts both strands of one DNA double helix, passes
another unbroken DNA helix through it, and then
reanneals the cut strands
EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (321)
Pyrimidine One carbon ring
Cytosine, Thymine, Uracil
Purine Two carbon rings
Adenine, Guanine
How are nucleotides joined Condensation to form phosphodiester bond
together?
, What is the function of mRNA? Carries genetic info out of nucleus
Transcript translated to protein
What is the function of tRNA? Carries aa to ribosome
Anticodon pairs with codon on mRNA strand
What is the function of rRNA? part of ribosome structure
most abundant RNA
coordinated coupling of tRNA to mRNA codons
Feedback inhibition Product of pathway is noncompetitive inhibitor
Binds to allosteric site to slow down rxn b/c too
much product
Exonucleases Degrades nucleic acids by removing one terminal nt
at a time
Cleaves phosphodiester bond at end of chain
5' --> 3' and 3' --> 5'
Endonucleases (Prok) Restriction enzymes
Cleaves phoshpodiester bonds w/i poly-nt chain
Recognition site is palindromic sequence
Types I-V
ORI sites nt sequence where replication is initiated
Topoisomerase I Induces ss breaks
Remove DNA supercoils during TXN and DNA
replication; for strand breakage during
recombination; for chr condensation; and to
disentangle intertwined DNA during mitosis
topoisomerase II cuts both strands of one DNA double helix, passes
another unbroken DNA helix through it, and then
reanneals the cut strands
