Which Action Could Produce a Carbonyl Group

question 52

Multiple Choice

Which action could produce a carbonyl group?

• A) the replacement of the -OH of a carboxyl group with hydrogen
• B) the addition of a thiol to a hydroxyl
• C) the addition of a hydroxyl to a phosphate
• D) the replacement of the nitrogen of an amine with oxygen

---

Definitions:

Lactose

A disaccharide sugar composed of galactose and glucose, commonly found in milk and dairy products, which requires the enzyme lactase for digestion.

Temporal Gene Regulation

The control of the timing of gene expression, ensuring that genes are turned on and off at the right times during development or in response to environmental cues.

Organism's Life Cycle

The sequence of biological events and processes that an organism undergoes from its birth until it reproduces offspring.

Heat-Shock Genes

Genes that are activated in response to elevated temperatures and other stresses to help protect cells by producing heat-shock proteins.