Which statement is true about cells?
A) Different types of cells that perform different functions in the body contain different genes.
B) Differentiation increases the different functions that a cell can perform.
C) All of a cell's genes are always available for transcription.
D) As genes are turned off within a cell, that cell and its daughter cells become more specialized.
E) The proteins that can be produced by a cell are determined at fertilization and do not change over time.

Question

Quizplus · Accepted Answer

Differentiation involves the turning off of certain genes within a cell, leading to specialization of that cell and its daughter cells. Option A is incorrect because different types of cells may contain the same genes, but express them differently. Option B is incorrect because differentiation decreases the range of functions a cell can perform. Option C is incorrect because only a subset of a cell's genes are available for transcription at any given time. Option E is incorrect because gene expression can change over time within a cell as it responds to environmental cues.

Which Statement Is True About Cells