Category 2 Review

What does DNA stand for?

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

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

DNA is a polymer made of:

• Nucleotides
• Ribosomes
• Purines
• Pyrimidines

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C

In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine