Dna Replication Flashcards
(25 cards)
What is the process by which DNA can replicate itself?
Semi conservative
How many sets of chromosomes do diploid cells have?
Diploid cells have 2 sets of chromosomes.
How many sets of chromosomes do haploid cells have?
Haploid cells have 1 set of chromosomes.
What are gametes?
Gametes are examples of haploid cells.
What does each daughter DNA molecule consist of?
Each daughter DNA molecule ends up with one of the original strands and one new strand.
What is synthesized during DNA replication?
A new DNA strand is synthesized.
What is the term for the daughter molecule in DNA replication
Daughter molecule is synthesized during the process.
What is the direction of the leading strand?
5’ to 3’ direction
What is the direction of the lagging strand?
3’ to 5’ direction
What is the role of DNA Polymerase?
It synthesizes new DNA strands.
What are Okazaki fragments?
Short DNA fragments synthesized on the lagging strand.
How are Okazaki fragments connected?
They are connected by ligase.
What is a primer in DNA replication?
A short nucleic acid sequence that provides a starting point for DNA synthesis.
What is the structure of DNA during replication?
DNA is unbound during replication.
What forms as the DNA double strand opens?
The replication fork forms and opens the double strand.
How are DNA bases oriented during replication?
The DNA bases are in opposite directions, exposing the strands.
How is the leading strand replicated?
The leading strand is being replicated continuously.
What is the role of a primer in DNA replication?
A primer is a short strand of nucleotides that binds to the 3’ end.
What does DNA polymerase do during replication?
DNA polymerase adds nucleotides along the strand.
Why do we have a leading and lagging strand in DNA replication?
We have a leading and lagging strand because the strands are antiparallel and DNA polymerase can only attach in one direction.
What is the purpose of a DNA template in replication?
The DNA template serves as a guide to form each new DNA strand.
What is required for DNA replication?
1) DNA template
2) Supply of nucleotides
3) Supply of energy (ATP)
These components are essential for the process of DNA replication.
What role does DNA polymerase play in DNA replication?
DNA polymerase adds DNA nucleotides using complementary base pairing.
How is energy supplied during DNA replication?
Energy is produced from nitrogen bonds.
