Components of DNA

Multiple Select

Which of the following are components of a DNA nucleotide?

• Phosphate group

• Deoxyribose sugar

• Nitrogenous base

• Amino acid

Open Ended

Explain why it is important that every cell contains DNA. What role does DNA play in the cell?

Multiple Choice

What is the main difference in the location of DNA between prokaryotic and eukaryotic cells?

• In prokaryotes, DNA is in the cytoplasm; in eukaryotes, DNA is in the nucleus.

• In prokaryotes, DNA is in the nucleus; in eukaryotes, DNA is in the cytoplasm.

• Both prokaryotes and eukaryotes have DNA in the nucleus.

• Prokaryotes do not have DNA.

Fill in the Blank

What is the shape of the DNA molecule as discovered by Watson and Crick?

Multiple Choice

What is the primary function of DNA in living organisms?

• To provide energy

• To store and transmit genetic information

• To break down nutrients

• To protect cells from viruses

Open Ended

What does DNA stand for, and what is it made up of?

Multiple Choice

Which of the following are the three basic parts of a nucleotide?

• Phosphate group, deoxyribose sugar, nitrogen base

• Phosphate group, ribose sugar, oxygen base

• Phosphate group, glucose, nitrogen base

• Phosphate group, deoxyribose sugar, carbon base

Multiple Choice

Which of the following are nitrogen bases found in DNA?

• Adenine, Thymine, Guanine, Cytosine

• Adenine, Uracil, Guanine, Cytosine

• Adenine, Thymine, Guanine, Uracil

• Adenine, Thymine, Cytosine, Uracil

Fill in the Blank

Why do you think they are called the nitrogen bases?

.

Multiple Choice

Which part of the DNA molecule is responsible for encoding genetic information?

• Nitrogen bases

• Sugar-phosphate backbone

• Phosphate group

• Deoxyribose sugar

Multiple Choice

Which of the following makes up the backbone of DNA?

• Nitrogen Bases

• Phosphate and Deoxyribose Sugar

• Phosphate and Nitrogen Bases

• Deoxyribose and Nitrogen Bases

Multiple Choice

Which of the following statements about hydrogen bonds in DNA is correct?

• Hydrogen bonds form between phosphate groups.

• Hydrogen bonds form between specific nitrogenous bases.

• Hydrogen bonds form between sugars and phosphates.

• Hydrogen bonds form between all nucleotides randomly.

Multiple Select

Select all correct statements about the composition and pairing of DNA bases.

• Adenine pairs with Thymine.

• Guanine pairs with Cytosine.

• Adenine pairs with Cytosine.

• Guanine pairs with Thymine.

Fill in the Blank

If there is 30% Adenine, how much Cytosine is present?

%

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Multiple Choice

Identify #2.

• nitrogen base
• phosphate group
• deoxyribose sugar
• nucleotide

Multiple Choice

A _________ is DNA tightly coiled around proteins.

• gene

• chromosome

• trait

• mutation

Multiple Choice

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

Multiple Choice

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