When Concordance Rates Are Higher Among Monozygotic Twins Than Dizygotic

question 156

Multiple Choice

When concordance rates are higher among monozygotic twins than dizygotic twins, this indicates which of the following?

• A)There is partially a genetic basis.
• B)There is partially an environmental basis.
• C)There is a 100% environmental cause.
• D)There is a 100% genetic cause.

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Definitions:

Phosphate

A chemical compound containing the phosphate ion, PO4^3-, crucial for energy transfer and storage within biological organisms.

ATP

Adenosine triphosphate, a molecule that stores and transfers energy within cells, powering many cellular processes.

Ion Channel-linked Receptor

A type of membrane receptor that can open or close an ion channel in response to the binding of a signaling molecule, thus affecting cell function.

Nicotinic Acetylcholine Receptor

A type of receptor found in the nervous system that responds to the neurotransmitter acetylcholine, playing a key role in muscle contraction and many other physiological functions.