DNA Structure and Function

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

Which of the following best describes the shape of a DNA molecule?

• 2 strands wound around each other - a double helix
• pyramid
• it has 3 strands wrapped around each other - a triple helix
• one single chain

In which cell part is DNA found?

• cell membrane
• vacuole
• chloroplast
• nucleus

Which of the following are the building blocks of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

This picture shows the simple building block of DNA called a:

• double helix
• nucelotide
• twisted ladder
• amino acid

Nucleotides are made up of a sugar, phosphate, and..?

• nitrogenous base
• lipid
• protein
• amino acid

Tags

NGSS.HS-LS1-1

Which of the following is the sugar found in DNA?

• Deoxyribose
• Ribose
• Pentose
• Glucose

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

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine