A Mutation in the Gene Encoding Troponin Has Occurred in a Mouse.What

question 16

Multiple Choice

A mutation in the gene encoding troponin has occurred in a mouse.What is a possible effect that this mutation could have on muscle activity?

• A) Signals from nerve impulses may be blocked from initiating an action potential in the muscle cell membrane.
• B) An action potential may be prevented from traveling down the T tubules.
• C) Calcium pumps in the sarcoplasmic reticulum may be blocked from releasing calcium into the sarcoplasm.
• D) Increases in calcium concentration in the sarcoplasm may not lead to cross-bridge formation between actin and myosin.
• E) Both c and d

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Definitions:

Gender Dysphoria

Distress resulting from a disagreement between one’s biological sex and one’s gender identity.

Gender Identity Disorder

An older term for what is now more commonly referred to as gender dysphoria, which is the distress or discomfort that may accompany a difference between a person's gender identity and their biological sex.

Oppositional Defiant Disorder

A behavioral disorder characterized by a persistent pattern of angry, defiant, and vindictive behavior towards authority figures.

Gender Dysphoria

A psychological condition where a person experiences discomfort or distress because there is a mismatch between their biological sex and gender identity.