For a Firefly to Glow,the Enzyme Luciferase Must Catalyze a Chemical

question 11

Multiple Choice

For a firefly to glow,the enzyme luciferase must catalyze 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?

• A) Even if the mutation changes the structure of the luciferase protein, it will still be able to perform the chemical reactions needed to make the firefly glow.
• B) The ability of the firefly to glow may or may not be affected by the mutation.
• C) The mutation will affect the structure of the mRNA made from the gene, but not the structure of the protein made from the gene.
• D) Any mutation in a gene causes that gene to stop making functional proteins.

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Definitions:

Glossopharyngeal Nerves

Cranial nerves IX that innervate the tongue and pharynx, playing key roles in taste, swallowing, and salivation.

Salivary Glands

Exocrine glands that produce saliva to initiate digestion and moisten the mouth.

Sense of Smell

The ability to detect and interpret odors through receptors in the nose, technically known as olfaction.

Normal Speech

The ability to produce vocal sounds that are recognized by listeners within a given language community as coherent spoken language.