A Western Blot Analysis of the Expression of Estrogen Receptors

question 84

Multiple Choice

A Western blot analysis of the expression of estrogen receptors in ovarian tissues at different times of the estrous cycle showed approximately four times greater protein levels at day 2 compared with day 10 of the cycle.Which of the following may be true given these data?

• A) Estrogen is acting as an endocrine signal in the ovaries.
• B) Estrogen is acting as an autocrine signal in the ovaries.
• C) Ovaries only secrete estrogen early in the estrous cycle.
• D) Ovarian tissue is responsive to estrogen only early in the estrous cycle.

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Definitions:

Rice Plantation

A large agricultural estate specifically designed for the cultivation of rice, often found in the southern United States before the Civil War, and reliant on enslaved labor.

Harsh Conditions

Refers to environments or situations that are extremely difficult to endure or survive in due to severe weather, lack of resources, or challenging circumstances.

Task Labor System

A labor system, notably used in plantation agriculture, where enslaved people were assigned specific tasks to complete each day, after which they had some degree of autonomy.

West Africa

A region located in the western part of the African continent, comprising 16 countries and noted for its diverse cultures, languages, and economic activities.