Cells Differentiate by

question 17

Multiple Choice

Cells differentiate by

• A)expressing different subsets of genes.
• B)expressing the entire genome,then silencing some genes.
• C)activating all of the DNA that encodes protein.
• D)becoming stem cells.

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Definitions:

Osteocytes

Mature bone cells encased in the calcified matrix, responsible for maintaining the bone tissue.

Osteon

The fundamental unit of compact bone, consisting of a central canal surrounded by concentric rings of bone matrix.

Osteoblasts

Cells responsible for the formation and mineralization of bone tissue.

Epiphysis

The end part of a long bone, initially growing separately from the shaft but later fusing to it.