Understanding DNA Structure Knowledge Check

What is the shape of the DNA molecule?

• Double helix

• Single strand

• Triple helix

• Circular

Which of the following is a component of a nucleotide?

• Amino acid

• Phosphate group

• Fatty acid

• Protein

What are the four nitrogenous bases found in DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Thymine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Uracil, Guanine

Explain why DNA is important for living organisms.

• It provides energy for cells.

• It stores genetic information.

• It helps in digestion.

• It transports oxygen.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

How do the base pairing rules contribute to the structure of DNA?

• They allow DNA to form a single strand.

• They ensure the DNA strands are parallel.

• They enable the double helix structure by pairing specific bases.

• They prevent DNA from replicating.