Practice Questions

In eukaryotes, RNA Polymerase I is specialized for transcribing the major ribosomal RNA genes within the nucleolus.

The cloverleaf pattern arises due to localized base pairing within a single tRNA strand, creating loops and stems.

Chargaff's rules apply only to double-stranded nucleic acids where base pairing forces a 1:1 ratio between complementary bases.

The 5' cap protects the transcript from exonuclease degradation and assists in ribosome binding during translation initiation.

RNA polymerase adds new nucleotides exclusively to the free 3'-OH group of the growing RNA polymer, moving in a 5' to 3' direction.

A nucleoside consists only of a sugar and a base; adding a phosphate group converts it into a nucleotide.

Retroviruses lack DNA in their viral particles and utilize RNA to store their complete hereditary information.

Messenger RNA is rapidly degraded by ribonucleases after translation to control the rate of protein synthesis dynamically.

Transfer RNA contains an anticodon loop with three specific bases complementary to an mRNA codon.

Ribonucleoside monophosphates (ribonucleotides) link together via condensation reactions to build the polymeric RNA strand.