DNA structure

Which of the following best describes a DNA molecule?

• contains ribose

• made of amino acids

• double helix

• contains Uracil

DNA is a polymer made of:

• Purines

• Nucleotides

• Ribosomes

• Pyrimidines

Why is DNA important?

• it is very small and very complicated

• it's in everything

• because we eat it every day for energy

• it serves as the blueprint for traits of all living things

Which organelle is DNA usually found in?

• cell membrane

• nucleus

• vacuole

• ribosome

Guanine bonds with ______________.

• Adenine

• Cytosine

• Guanine

• Thymine

What will the matching sequence be on a strand that reads AAGCTAT?

• TTCGATA

• AACGATA

• CCTGATA

• TTCGTTA

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

What does DNA stand for?

• Deoxyribonucleic acid

• Deribonucleic acid

• Denitrogenous acid

• Diribonucleic acid