Exam 13: From Gene to Protein

Which molecules are involved in translation?

If a strand of DNA has the sequence CGTAA, the RNA made from this molecule will have the sequence

The position of the start codon is important because every molecule of mRNA can be read by a ribosome in three different ways.

A promoter would be located on

Which of the following does not take place in the nucleus?

The _______ is a sequence of DNA where RNA polymerase binds to begin transcription.

Which of the following best describes the function of genes?

For a firefly to glow, the enzyme luciferase must assist a chemical reaction in the cells of the firefly. A scientist uses a chemical to induce a mutation in the luciferase gene in a strain of fireflies. Which of the following is true?

If both strands of the DNA of a gene underwent transcription and translation, they would produce the same mRNA and protein.

A chemical that causes the formation of a covalent bond between adenine and thymine is added to a cell. How does this drug affect protein production in the cell?

The third position in the _______ of some tRNAs is said to wobble because it can pair with one up to three different bases.

The sugar molecule present in RNA is

In bacteria, the antibiotic tetracycline blocks the site where tRNA molecules enter the ribosome. Bacteria die from treatment with tetracycline because the antibiotic

The key enzyme used during transcription is

Each tRNA molecule has a site at one end that

For translation to begin mRNA must first bind to a ________.

A potential danger of a mutation to an organism is that

During translation,

The importance of tRNA is that it

As transcription begins, RNA polymerase binds to a segment of a gene called