Statistics for nucleic acids: A level-OCR

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General Stats

This quiz has been taken 14 times
The average score is 20 of 32

Answer Stats

Hint	Answer	% Correct
how many bonds form between A and T bases?	2	100%
name a purine base	adenine/guanine	100%
what is the sugar present in RNA?	ribose	100%
name the base present in RNA but not DNA	uracil	100%
What is the sugar in DNA?	deoxyribose	93%
what is the shape DNA is twisted to form?	double helix	93%
name a pyrimidine base	thymine/cytosine	93%
how many codons would a codon code if a codon could code 1 amino acid?	3	86%
how many bases make up a codon?	3	86%
what catalyses the breaking of H-bonds between bases?	helicase	86%
What is complimentary to the base adenine in DNA?	thymine	86%
there are 3 types of RNA; messenger, ribosomal and.....	transfer	86%
which strand (parallel or anti parallel) run 3' prime to 5' prime?	antiparallel	79%
In SCR 2 strands are used as templates, how many are in the formation of mRNA?	1	71%
what does ATP stand for?	adenosine triphosphate	71%
what bonds form between the sugar and phosphate group via a condensation reaction?	phosphodiester	71%
the sequence of nucleotide bases determines the sequence of what in the polypeptide?	amino acids	64%
when attempting to observe DNA, what alcohol is added to form a white precipitate?	ethanol	64%
what is the process that occurs when mRNA reaches a ribosome?	translation	64%
what bonds form between the amino acids left behind by the tRNA?	peptide	57%
what catalyses the formation of the new sugar phosphate backbone?	polymerase	57%
what is the name given to the formation of mRNA?	transcription	57%
how many bases fit in a ribosome?	6	50%
name the anticodon for the codon UAC	AUG	50%
what codon hates dogs?	CAT	50%
sequences of DNA nucleotide bases that code for a polypeptide chain	gene	43%
what catalyst is used in the unwinding of DNA?	gyrase	29%
what is the name given to DNA replication?	semi conservative replication	29%
when investigating SCR, an isotope of what element was used?	nitrogen	21%
what is the name given to the original strands in SCR?	template	7%
what protein is used to fold the polypeptide chain into its tertiary structure?	chaperone	0%
why is salt used when attempting to observe DNA?	joins DNA	0%