If the DNA Content of a Diploid Cell in the G₁

question 44

Multiple Choice

If the DNA content of a diploid cell in the G₁ phase of the cell cycle is x, then the DNA content of the same cell at metaphase of meiosis I will be

• A) 0.25x.
• B) 0.5x.
• C) x.
• D) 2x.

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Definitions:

Mitral Valve

A valve in the heart that allows blood to flow from the left atrium into the left ventricle but prevents it from flowing back into the atrium.

Atrioventricular Valve

Heart valves located between the atria and ventricles of the heart, facilitating unidirectional blood flow.

Bicuspid Valve

A valve in the heart that has two cusps or flaps, and controls blood flow between the left atrium and the left ventricle; also known as the mitral valve.

Sinoatrial Node

The heart's natural pacemaker, located in the right atrium, responsible for initiating the heart's contractions.