All Cells in a Multicelled Organism Have the Same DNA

question 7

Multiple Choice

All cells in a multicelled organism have the same DNA. What does this mean?

• A) Every cell produces the same range of proteins.
• B) Each cell ultimately produces the same range of proteins but in a different order as the cell ages.
• C) RNA polymerase affected by activator or inhibitor sequences is one way in which genes in most cells can be selectively turned on or off.
• D) External chemical inputs must be used to determine which genes are expressed in which cells.

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Definitions:

Cytoplasm Extensions

Structures such as pseudopodia that extend from the cell body to aid in movement or feeding.

Capillaries

Tiny blood vessels that connect arteries and veins, facilitating the exchange of water, oxygen, carbon dioxide, and other nutrients and waste substances between blood and tissues.

Peripheral Nervous System

The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord.

Motor End Plate

The specialized part of a muscle cell membrane at a neuromuscular junction where neurotransmitters from motor neurons signal the muscle to contract.