Ring Particles Range in Size from Tiny Grains to

question 15

Multiple Choice

Ring particles range in size from tiny grains to

• A) house-sized boulders.
• B) basketball-sized boulders.
• C) city-sized chunks.
• D) tennis ball-sized rocks.
• E) fingernail-sized pebbles.

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Definitions:

Thymine

A nitrogenous base found in DNA, pairing with adenine in the structure of the DNA molecule.

Cytosine

Cytosine is one of the four main bases found in DNA and RNA, pairing with guanine in the genetic code.

Guanine

One of the four main nucleobases found in the nucleic acids DNA and RNA, which pairs with cytosine.

Adenine

One of the four nucleobase molecules in the nucleic acids of DNA and RNA, paired with thymine in DNA and uracil in RNA.