DNA Structure Quiz

What does DNA stand for?

• Deoxyribonucleic Acid

• Deoxyribonucleic Acid

• Deoxyribonucleic Atom

• Deoxyribonucleic Adenosine

What is the basic structure of DNA?

• triple helix

• quadruple helix

• single strand

• double helix

What are the four nitrogenous bases found in DNA?

• adenine, uracil, cytosine, guanine

• adenine, thymine, cytosine, guanine

• adenine, thymine, cytosine, uracil

• adenine, thymine, uracil, guanine

What is the function of DNA in cells?

• provide energy for cellular processes

• store and transmit genetic information

• synthesize proteins

• regulate cell division

What is the shape of the DNA molecule?

• single strand

• triple helix

• square

• double helix

What is the complementary base pairing in DNA?

• Adenine (A) pairs with Guanine (G), and Thymine (T) pairs with Cytosine (C)

• Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C)

• Adenine (A) pairs with Cytosine (C), and Guanine (G) pairs with Thymine (T)

• Adenine (A) pairs with Uracil (U), and Guanine (G) pairs with Cytosine (C)

What is the role of hydrogen bonds in DNA structure?

• Hydrogen bonds hold the two strands of the DNA double helix together.

• Hydrogen bonds are responsible for DNA replication.

• Hydrogen bonds break the DNA double helix apart.

• Hydrogen bonds provide stability to the DNA molecule.

What is the difference between DNA and RNA?

• DNA contains uracil while RNA contains thymine.

• DNA is single-stranded while RNA is double-stranded.

• DNA is double-stranded while RNA is single-stranded.

• DNA and RNA have the same structure.

What is the significance of DNA replication?

• DNA replication is only important for cell division.

• DNA replication is essential for cell division, growth, and repair.

• DNA replication is not necessary for growth and repair.

• DNA replication is only significant in certain types of cells.

What are the three components of a nucleotide?

• sugar molecule, phosphate group, nitrogenous base

• sugar molecule, phosphate molecule, nucleic acid

• sugar group, phosphate group, nucleic acid

• sugar group, phosphate molecule, nitrogenous base