Molecular Bio Test 2: Multiple Choice Questions:

The phosphodiester bonds between deoxyribose sugars would be broken

DNase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen to dna molecules treated with DNase?

N-formyl methionine

In prokaryotes, the 1st amino acid incorporated in the polypeptide chain is:

intron

The branch point A residue involved in lariat formation is part of the:

Prostate in men and breast in women

The most prevalent form of cancers in the US is:

False

The polyA tail on eukaryotic mRNA is encoded by a long string of Ts at the end of the gene. Is this statement true or false?

to position RNA polymerase correctly on the template dna

The role of the sigma factor in bacterial RNA polymerase is:

HPV

Viruses that can cause cancer

There is no difference.

What is the difference between the structure of ATP and the structure of the precursor of the A nucleotide in RNA?

the deoxyribonucleotide triphosphate substrates

What provides the energy for the polymerization reactions in dna synthesis?

Telomerase

Which of the following activities is not needed for replication of the e.coli chromosome?

A modified guanine nucleotide added to the 5' end of the transcript.

Which of the following best describes the "cap" modification of eukaryotic mRNA?

Excision of group 2 enzymes

Which of the following does not require protein enzymes?

-35, -10 promoter

Which of the following occur in both eukaryotic and bacterial transcription?

Both RNA and protein

Which of the following would you expect to find if you took apart a sliceosome?