During the Development of Lymphocytes, Some Pre-T and Pre-B Cells

question 93

Multiple Choice

During the development of lymphocytes, some pre-T and pre-B cells survive and develop into cells capable of an immune response; this is referred to as ________ selection. However, some cells are suppressed from responding to self antigens; this is referred to as ________ selection.

• A) negative; positive
• B) neutral; negative
• C) negative; neutral
• D) neutral; positive
• E) positive; negative

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Definitions:

Election Of 1864

The United States presidential election of 1864, held during the Civil War, resulted in the re-election of Abraham Lincoln.

Abraham Lincoln

The 16th President of the United States (1861-1865) known for leading the country during the Civil War, emancipating slaves through the Emancipation Proclamation, and promoting reunification.

War-Weariness

A condition of feeling fatigue, disillusionment, or a strong desire for peace after prolonged periods of conflict, affecting individuals and societies.

Northerners

Generally refers to the residents or characteristics of the northern part of a country or region, but in U.S. history, it often specifically refers to residents of the Northern States, especially during the Civil War era.