DNA and RNA Review

A DNA molecule is a polymer composed of subunits known as:

• disaccharides

• nucleotides

• ribose sugars

• uracil molecules

What is represented in the picture?

• monosaccharide
• nucleotide
• amino acid
• fatty acid

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Which of the following best describes the shape of a DNA molecule?

• double helix

• single stranded.

• made of amino acids

• an irregular blob.

Tags

NGSS.HS-LS1-1

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Which nucleotide always pairs with G?

• A

• C

• T

• Another G

The difference between RNA and DNA are

• RNA has ribose sugar and DNA has deoxyribose

• DNA is double stranded and RNA is single stranded

• RNA has uracil and DNA has thymine

• All of the above

What sugar is found in RNA?

• glucose

• deoxyribose

• ribose

• sucrose

Which nitrogenous base is unique to RNA?

• Cytosine

• Adenine

• Thyamine

• Uracil

True or False: RNA leaves the nucleus.

• True

• False