Mature RBCs are adapted to not contain a nucleus. This allows them to carry more hemoglobin. As a result of this adaptation, RBCs ________.

Answer

Cannot undergo mitosis.

Rationale

Mature red blood cells eject their nucleus during development, which allows more room for hemoglobin and increases their oxygen-carrying capacity. However, this loss of a nucleus also means RBCs no longer have the genetic material required for mitosis, so they cannot divide or reproduce.

Answer choices

• A. Cannot undergo mitosis.

  Mature red blood cells eject their nucleus during development, which allows more room for hemoglobin and increases their oxygen-carrying capacity. However, this loss of a nucleus also means RBCs no longer have the genetic material required for mitosis, so they cannot divide or reproduce.

• B. Have large energy reserves.

• C. Never die.

• D. Reproduce quickly.