Question

Which of the following best describes gene regulation?

  A. A person's phenotype can differ from his or her genotype.
  B. All cells make all types of proteins at all times.
  C. Specific proteins are made only at certain times in certain cells.
  D. Each cell contains the code to make only one protein.

Answer 1

Specific proteins are made only at certain times in certain cells.

Answer 2

Answer: C.Specific proteins are made only at certain times in certain cells.

Explanation:

• Gene regulation is the process of regulating the expression of genes.

• This process is vital to the cells, as it controls the number of gene products being produced at a given time in a given cell.

• Since the gene product is in two forms- the RNA and proteins, this means that not all the proteins are being made in all the cells but the expression of genes is cell specific.

Thus, gene regulation is best described by the statment given in option C.