DNA Structure and Function

Which of the following best describes a DNA molecule?

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

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

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.
• We eat it every day for energy.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Name this structure

• double helix
• nucelotide
• amino acid
• protein

Tags

NGSS.HS-LS1-1

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

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

• ribose (sugar) and nitrogen bases
• ribose (sugar) and phosphate
• deoxyribose (sugar) and nitrogen bases
• deoxyribose (sugar) and phosphate

Which organelle is DNA usually found in?

• mitochondrian
• cell membrane
• chloroplast
• nucleus

Tags

NGSS.MS-LS1-2

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

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• chromosomes
• protiens