Exam 8: Gene Expression: the Flow of Information From Dna to Rna to Protein

Aminoacyl-tRNA synthetase is the enzyme that

Select the statement that describes the stability of DNA and RNA under typical cellular conditions.

Mutations that completely abolish the function of a wild-type allele are

Drugs like AZT, ddC, or ddI work against the AIDS virus because they

The genetic code includes

A neomorphic mutation in the Antennapedia (Antp)gene of Drosophila causes

Which enzyme forms peptide bonds between adjacent amino acids during polypeptide synthesis?

The different tRNAs are produced by

In the digestive system, some protease enzymes must be secreted as an inactive form and then activated later by proteolytic cleavage once outside of the secreting cell to prevent active proteases from damaging the secreting cells.What is the category of precursor proteins of this type?

Which of the following is required for initiation of eukaryotic translation?

A neomorphic mutation could result in an allele that

RNA polymerase binds to ________ before beginning transcription.

A mutation that occurs when a base is inserted into or deleted from a DNA sequence, completely altering the subsequent sequence of codons, is a

In the modification of eukaryotic mRNA, ________ cap and ________ tail are usually added to the transcript.

Which of these processes are coupled in prokaryotes but NOT in eukaryotes?

Mutations that result in the production of much less of a protein or a protein that functions less efficiently than wild type are

A complex of proteins and small nuclear RNAs that form discrete particles to mediate splicing is a

The DNA sequence 5' ATGCCTGAATCAGCTTTA 3' could encode a maximum of ____ amino acids in a protein.