DNA Structure Quiz

What is the structure of DNA?

• single strand

• triple helix

• quadruple helix

• double helix

What are the two main components of DNA?

• nucleotides and phosphate groups

• adenine and guanine

• sugar and nitrogen bases

• cytosine and thymine

What is the function of DNA in cells?

• store and transmit genetic information

• synthesize proteins

• regulate cell division

• provide energy for cellular processes

Tags

NGSS.HS-LS3-1

What are the four nitrogenous bases found in DNA?

• uracil, thymine, cytosine, guanine

• adenine, uracil, cytosine, guanine

• adenine, thymine, uracil, guanine

• adenine, thymine, cytosine, guanine

What type of bond holds the two strands of DNA together?

• hydrogen bonds

• van der Waals forces

• ionic bonds

• covalent bonds

What is the shape of the DNA molecule?

• single strand

• triple helix

• square

• double helix

What is the role of DNA in protein synthesis?

• DNA acts as a catalyst in protein synthesis.

• DNA provides the instructions for protein synthesis.

• DNA provides the energy for protein synthesis.

• DNA determines the location of protein synthesis.

Tags

NGSS.HS-LS1-1

What is the difference between DNA and RNA?

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

• DNA and RNA have the same structure.

• DNA contains uracil while RNA contains thymine.

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

What is the complementary base pairing rule in DNA?

• Adenine (A) pairs with cytosine (C), and guanine (G) pairs with thymine (T)

• Adenine (A) pairs with guanine (G), and cytosine (C) pairs with thymine (T)

• Adenine (A) pairs with uracil (U), and guanine (G) pairs with cytosine (C)

• Adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C)

What is the significance of DNA replication?

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

• DNA replication is not necessary for growth and repair.

• DNA replication is only important for cell division.

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