DNA Is the Main Hereditary Material of All Life

question 32

Multiple Choice

DNA is the main hereditary material of all life. However, DNA lacks one important characteristic for the first forms of life. Why have researchers rejected the idea that DNA was found in the first life-form?

• A) It does not function as a catalyst.
• B) It is not stable enough to have withstood early Earth's harsh atmosphere.
• C) DNA only has four types of bases. Therefore, DNA cannot adapt and evolve.
• D) The type of sugar found in DNA is too complicated to have been present early in Earth's history.

Understand the effectiveness of health interventions, including stress reduction and behavioral changes.

Grasp the importance of self-efficacy in achieving health-related goals.

Learn about the role of genetics in coronary heart disease and depression.

Identify cultural values impacting health behavior and management.

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Definitions:

North-South

A direction or orientation aligning with the Earth's magnetic or true north and south poles.

East-West

A directional orientation parallel to the equator, used to describe the relative positioning of geographic features or movements on Earth.

Shortened

Made smaller in length, duration, or extent.

Metamorphic Grade

A classification of the degree of metamorphism or the extent of crystalline, structural, and chemical changes that have occurred in a rock due to heat, pressure, and chemical processes.