Unit 5 Section 1 - Bio

What is Chargaff’s rule regarding base pairing in DNA?

• The amount of A is equal to the amount of C

• The amount of A is equal to the amount of T

• The amount of A is greater than the amount of T

Historically, who was credited with discovering the shape of DNA?

• Watson and Crick

• Rosalind Franklin

• Gregor Mendel

What does the term "double helix" refer to in DNA?

• A process in protein synthesis

• The twisted ladder-like shape of DNA

• The structure of a single strand of DNA

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

• Protein

• Phosphate

• Sugar

What two components make up the DNA backbone?

• Ribose

• Deoxyribose

• Phosphate

Which protein is responsible for coiling DNA into chromosomes?

• Histones

• RNA polymerase

• DNA polymerase

Which of the following is true about complementary base pairing in DNA?

• A pairs with T, and C pairs with U

• A pairs with C, and T pairs with G

• A pairs with T, and C pairs with G

What does it mean that DNA is "antiparallel"?

• The two strands of DNA run in the same direction

• The two strands of DNA run in opposite directions

• The strands of DNA have identical sequences

What role does DNA polymerase play in DNA replication?

• It unwinds the DNA double helix

• It helps in the formation of peptide bonds

• It attaches new nucleotides to the original DNA strand

During transcription, what base does RNA polymerase use instead of thymine (T)?

• Adenine (A)

• Guanine (G)

• Uracil (U)