Podcast
Questions and Answers
During which process is DNA copied in a dividing cell?
During which process is DNA copied in a dividing cell?
What is the name for the Y-shaped region that results in DNA replication?
What is the name for the Y-shaped region that results in DNA replication?
Which enzyme is responsible for breaking the hydrogen bonds between bases during DNA replication?
Which enzyme is responsible for breaking the hydrogen bonds between bases during DNA replication?
What is the term for the fragments formed on the lagging strand during DNA replication?
What is the term for the fragments formed on the lagging strand during DNA replication?
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Which direction does DNA synthesis occur on the leading strand during replication?
Which direction does DNA synthesis occur on the leading strand during replication?
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What is the term for the process of forming covalent bonds between nucleotides during DNA replication?
What is the term for the process of forming covalent bonds between nucleotides during DNA replication?
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What is the name for the type of DNA replication where each new double helix contains one strand from the original molecule and one newly synthesized strand?
What is the name for the type of DNA replication where each new double helix contains one strand from the original molecule and one newly synthesized strand?
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What is the name of the enzyme responsible for unwinding the DNA strands during replication?
What is the name of the enzyme responsible for unwinding the DNA strands during replication?
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What is the term for the process where complementary nucleotides are added to the new DNA strand by DNA polymerases?
What is the term for the process where complementary nucleotides are added to the new DNA strand by DNA polymerases?
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Which enzyme is responsible for joining the Okazaki fragments together during DNA replication?
Which enzyme is responsible for joining the Okazaki fragments together during DNA replication?
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What is the directionality of DNA synthesis on the leading strand during replication?
What is the directionality of DNA synthesis on the leading strand during replication?
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During which process does synthesis on one DNA strand occur in the opposite direction from the replication fork?
During which process does synthesis on one DNA strand occur in the opposite direction from the replication fork?
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What is the term for the region where the two nucleotide strands of DNA separate during replication?
What is the term for the region where the two nucleotide strands of DNA separate during replication?
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What is the term for the type of DNA replication where each new DNA double helix contains one strand from the original molecule and one newly synthesized strand?
What is the term for the type of DNA replication where each new DNA double helix contains one strand from the original molecule and one newly synthesized strand?
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Study Notes
DNA Replication Process
- DNA is copied during the cell division process known as replication.
Y-Shaped Structure
- The Y-shaped region formed during DNA replication is called the replication fork.
Enzymatic Functions
- DNA helicase is the enzyme that unwinds the DNA strands during replication.
- DNA polymerase is responsible for breaking hydrogen bonds between base pairs, facilitating strand separation.
- Complementary nucleotides are added to the growing DNA strand by DNA polymerases.
Lagging Strand Characteristics
- Fragments formed on the lagging strand during DNA replication are called Okazaki fragments.
- Synthesis on one DNA strand, known as the lagging strand, occurs in the opposite direction from the replication fork.
Direction of Synthesis
- DNA synthesis occurs in a 5' to 3' direction on the leading strand.
- The leading strand is synthesized continuously towards the replication fork.
Bond Formation
- The process of forming covalent bonds between nucleotides during DNA replication is termed ligation.
- DNA ligase is the enzyme that joins Okazaki fragments together on the lagging strand.
Types of DNA Replication
- Semiconservative replication is the type where each new double helix consists of one original strand and one newly synthesized strand.
- The replication fork serves as the active site where the two nucleotide strands separate during the replication process.
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Description
Test your knowledge of the DNA replication process in dividing cells with this quiz. Learn about the steps involved in DNA copying, including strand separation, formation of a replication fork, and the role of DNA polymerases.
