Deoxyribonucleic Acid

What does DNA stand for?

• a) Deoxyribonucleic acid

• b) Ribonucleic acid

• c) Deoxyribose nitrogen acid

• d) Ribose nitrogen acid

What is the basic unit of DNA called?

• a) Amino acid

• b) Nucleotide

• c) Protein

• d) Carbohydrate

What are the four nitrogenous bases found in DNA?

• a) Adenine, guanine, thymine, uracil

• b) Adenine, guanine, cytosine, uracil

• c) Adenine, thymine, cytosine, uracil

• d) Adenine, guanine, thymine, cytosine

What is the shape of the DNA molecule?

• a) Circular

• b) Square

• c) Helical

• d) Linear

What is the process called by which DNA makes an exact copy of itself?

• a) Translation

• b) Transcription

• c) Replication

• d) Mutation

Which of the following is not a component of a nucleotide?

• a) Phosphate group

• b) Nitrogenous base

• c) Hydrogen group

• d) Sugar molecule

What is the complementary base pairing rule in DNA?

• a) Adenine pairs with uracil, guanine pairs with cytosine

• b) Adenine pairs with guanine, cytosine pairs with uracil

• c) Adenine pairs with thymine, guanine pairs with cytosine

• d) Adenine pairs with cytosine, guanine pairs with thymine

Which of the following is not a type of RNA?

• a) Messenger RNA (mRNA)

• b) Transfer RNA (tRNA)

• c) Ribosomal RNA (rRNA)

• d) Deoxyribonucleic RNA (drRNA)

Where is DNA found in eukaryotic cells?

• a) Nucleus

• b) Mitochondria

• c) Chloroplasts

• d) Ribosomes

Which of the following is not a factor that can cause DNA mutations?

• a) Radiation

• b) Chemical exposure

• c) Diet

• d) Inherited traits