DNA Replication Quiz

What is the process of DNA replication?

• Reversing the genetic code of a DNA strand

• Combining DNA from different organisms to create a new strand

• Making an identical copy of a DNA strand

• Breaking down a DNA strand into smaller pieces

Explain the steps involved in DNA replication process.

• 1. Separation of the RNA strands 2. Synthesis of new RNA strands 3. Joining of the new RNA strands

• 1. Unwinding of the DNA single helix 2. Separation of the DNA strands 3. Synthesis of old DNA strands

• 1. Unwinding of the RNA double helix 2. Separation of the RNA strands 3. Synthesis of new RNA strands

• The steps involved in DNA replication process include: 1. Unwinding of the DNA double helix 2. Separation of the DNA strands 3. Synthesis of new DNA strands 4. Joining of the new DNA strands

Name two enzymes involved in DNA replication.

• DNA polymerase and DNA helicase

• RNA polymerase and DNA helicase

• ATP synthase and DNA ligase

• RNA polymerase and DNA ligase

What are the functions of DNA polymerase and DNA ligase in DNA replication?

• DNA polymerase copies RNA and DNA ligase splices introns and exons

• DNA polymerase breaks down nucleotides and DNA ligase repairs damaged DNA

• DNA polymerase removes nucleotides and DNA ligase creates mutations in the DNA

• DNA polymerase adds new nucleotides and DNA ligase joins Okazaki fragments

What is the role of helicase in DNA replication?

• Unwinding the double-stranded DNA

• Adding new nucleotides to the DNA strand

• Breaking down the DNA into nucleotides

• Proofreading the DNA for errors

How does helicase function in the replication process?

• Cuts the DNA into smaller fragments

• Unwinds the double-stranded DNA

• Adds new nucleotides to the DNA strand

• Stabilizes the unwound DNA strands

Describe the formation of a replication fork.

• Formation of a replication fork involves the joining of two single-stranded DNA into a double-stranded DNA.

• Formation of a replication fork involves the formation of a triple-stranded DNA.

• Formation of a replication fork involves the unwinding and separation of double-stranded DNA into two single strands.

• Formation of a replication fork involves the separation of RNA and DNA strands.

Explain the significance of the replication fork in DNA replication.

• It is the point where DNA replication stops

• It is the location where RNA is transcribed from DNA

• It is the area where DNA is packaged into chromosomes

• It is the point at which the DNA double helix is unwound and new DNA strands are synthesized during DNA replication.

Differentiate between leading and lagging strands in DNA replication.

• Leading strand is synthesized continuously, while lagging strand is synthesized discontinuously.

• Leading strand is synthesized outside the nucleus, while lagging strand is synthesized inside the nucleus.

• Leading strand is synthesized discontinuously, while lagging strand is synthesized continuously.

• Leading strand is synthesized in the 3' to 5' direction, while lagging strand is synthesized in the 5' to 3' direction.

What are the characteristics of leading and lagging strands during DNA replication?

• The leading strand is synthesized continuously, while the lagging strand is synthesized discontinuously.

• Both the leading and lagging strands are synthesized continuously.

• The leading strand is synthesized in the 3' to 5' direction, while the lagging strand is synthesized in the 5' to 3' direction.

• The leading strand is synthesized discontinuously, while the lagging strand is synthesized continuously.