DNA Replication

What is the shape of DNA?

• Single helix

• Double helix

• Circular

• Linear

What is the role of RNA primers in DNA replication?

• Short RNA sequences that provide a starting point for DNA synthesis.

• Enzymes that unwind the DNA double helix.

• Proteins that stabilize the DNA structure during replication.

• Nucleotides that replace damaged DNA segments.

How does DNA replication differ in prokaryotes and eukaryotes?

• Prokaryotes replicate DNA from multiple origins, while eukaryotes have a single circular DNA molecule.

• Prokaryotes have multiple linear chromosomes and replicate from multiple origins, while eukaryotes have a single circular DNA molecule.

• Prokaryotes have a single circular DNA molecule and replicate it from a single origin, while eukaryotes have multiple linear chromosomes and multiple origins of replication.

• Prokaryotes and eukaryotes replicate DNA in the same way, using a single origin of replication.

What are the building blocks of DNA?

• Amino acids

• Nucleotides, which consist of sugar, phosphate, and nitrogenous bases.

• Fatty acids

• Monosaccharides

What is semi-conservative replication?

• The method of DNA replication where each new DNA molecule consists of one old strand and one new strand.

• The process by which DNA is completely copied to form two identical molecules.

• A type of DNA replication that occurs only in prokaryotic cells.

• The mechanism by which RNA is synthesized from a DNA template.

True or False: The new DNA strand formed after DNA replication is an exact copy of its parent strand.

• True

• False

• Partially True

• Not Applicable

What are the four nitrogenous bases in DNA?

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

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

• Adenine (A), Thymine (T), Cytosine (C), and Uracil (U)

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

What is DNA replication?

• The process by which a cell makes an exact copy of its DNA before cell division.

• A method of protein synthesis in cells.

• The mechanism by which RNA is transcribed from DNA.

• The process of cell division that results in two identical cells.

What is the difference between leading and lagging strands during DNA replication?

• The leading strand is synthesized continuously, while the lagging strand is synthesized in short segments called Okazaki fragments.

• Both strands are synthesized continuously without interruption.

• The leading strand is synthesized in short segments, while the lagging strand is synthesized continuously.

• The leading strand is synthesized only during the S phase, while the lagging strand is synthesized during G2 phase.

What is the role of DNA polymerase in DNA replication?

• An enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

• A protein that unwinds the DNA double helix before replication.

• A molecule that transports nucleotides to the site of DNA synthesis.

• An enzyme that repairs damaged DNA strands after replication.