The pieces at the ends of chromosomes are referred to as

A) cortisol.
B) glucocorticoid.
C) telomeres.
D) NK cells.

Telomeres

The protective caps at the end of chromosomes that shorten with each cell division, linked to aging and cell longevity.

Chromosomes

Structures within cells that contain DNA and genetic information, essential for heredity and biological function.

Glucocorticoid

A type of steroid hormone produced by the adrenal glands that regulates metabolism and immune response.