DNA

Which of the following is TRUE about the DNA molecule?

• is shaped like a double helix

• contains 3 types of bases

• contains no sugar

• only found in plants and animals

Tags

NGSS.HS-LS1-1

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

• cytosine

• guanine

• thymine

• uracil

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

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What determines the code, or information, of a DNA molecule?

• the shape (structure) of the nitrogen bases
• the order (sequence) of the nitrogen bases
• the color of the nitrogen bases
• the frequency (number) of nitrogen bases

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 organelle is DNA usually found in?

• cell membrane

• vacuole

• chloroplast

• nucleus

Tags

NGSS.HS-LS1-1

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
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

DNA codes for the production of

• cholesterol

• proteins

• fatty acids

• a sandwich

Tags

NGSS.HS-LS1-1

In eukaryotes, DNA

• floats freely in the cytoplasm

• is found in the nucleus

• is wrapped within the ribosome

• is circular