Nucleic Acid Biochemistry — Flashcards

Guanosine is converted to _____ via the enzyme purine nucleoside phosphorylase (purine salvage)

Hypoxanthine is converted to _____ via xanthine oxidase

One co-transcriptional modification is the addition of a _____ at the 5' end

Inosine is converted to _____ via the enzyme purine nucleoside phosphorylase (purine salvage)

The _____ is the site where RNA polymerase II and general transcription factors bind to DNA upstream from a gene locus

microRNA often leads to the _____ of target mRNA, thus causing decreased translation into protein

The enzymes that repair pyrimidine dimer mutations are _____ and DNA ligase

Active tetrahydrofolate is used in the synthesis of _____ and thymidine, which may then be used for DNA and RNA cell division

RNA polymerase _____ makes mRNA

_____, the catalyst for the first reaction unique to pyrimidine biosynthesis, is a target of feedback regulation by two nucleotide triphosphates: ATP and CTP