Although DNA Is the Main Hereditary Material in All Life-

question 18

Multiple Choice

Although DNA is the main hereditary material in all life- forms, it lacks one important characteristic to make it a candidate for the first life- form. Why have researchers rejected the idea that DNA was found in the first
Life- form?

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

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Definitions:

Lesbian Sexual Orientation

A sexual orientation characterized by a romantic or sexual attraction between women.

Gender Identity

Gender Identity refers to an individual's personal sense of their own gender, which may or may not correspond to the sex assigned at birth.

Sexual Orientation

An enduring pattern of emotional, romantic, or sexual attractions to men, women, or both sexes. Sexual orientation also refers to a person's sense of identity based on those attractions, related behaviors, and membership in a community of others who share those attractions.

Genetic

Relating to genes or heredity, the study of how traits are passed from parents to offspring through DNA.