Genetic Code

What shape is a DNA molecule?

3. There are four nitrogenous bases found in DNA. Three are cytosine, adenine and guanine. What is the fourth?

4. The bases form complimentary base pairs. Which pairs shown are correct?

• A - T and C - G
• A - C and T - G
• A - G and C - T

6. What is the name of the monomer (building blocks) that makes up DNA?

• amino acid

• monosaccharide

• glycerol and fatty acid

• nucleotide

7. Which type of bonds form between complementary base pairs?

• Oxygen
• Hydrogen
• Phosphodiester
• Covalent

What makes up the backbone of the DNA?

• Ribose
• Dextrose
• phosphate and sugar
• nitrogen bases

DNA codes for...

• cholesterol
• proteins
• fatty acids
• a sandwich

Tags

NGSS.HS-LS1-1