DNA showdown exam

What does DNA stand for?

• Deoxyribonucleic Acid

• Deoxyribonucleic Acid

• Dihydrogen Nitrogen Atom

• Deoxyribonucleic Alloy

What is the shape of the DNA molecule?

• Square

• Triangle

• Double helix

• Single strand

What are the building blocks of DNA?

• Carbohydrates

• Lipids

• Proteins

• Nucleotides

What are the four nitrogenous bases found in DNA?

• Adenine, Thymine, Guanine, Cytosine

• Adenosine

• Guanosine

• Uracil

• Thymidine

What holds the nitrogenous bases together in a DNA molecule?

• Covalent bonds

• Ionic bonds

• Van der Waals forces

• Hydrogen bonds

What is the function of DNA in living organisms?

• DNA acts as a protective layer around cells in living organisms.

• DNA functions as the genetic material in living organisms.

• DNA serves as a source of energy in living organisms.

• DNA is responsible for regulating temperature in living organisms.

What color is the Sugar group in our DNA diagram?

• Red

• Blue

• Orange

• Green

How many strands (sides) make up a DNA molecule?

• 4

• 3

• 5

• 2

What is the complementary base pair for Adenine in DNA?

• Uracil

• Thymine

• Cytosine

• Guanine

Describe the double helix structure of DNA.

• The double helix structure of DNA is composed (made up of) of three strands instead of two.

• The double helix structure of DNA consists of two strands twisted around each other, made up of nucleotides with adenine pairing with thymine and guanine pairing with cytosine.

• In the double helix structure of DNA, adenine pairs with guanine and thymine pairs with cytosine.

• The double helix structure of DNA is a single-stranded linear molecule.