Question
What occurs during D N a replication
The D N a spreads into the floor nitrogen bases
nitrogen bases Floating in the Nucleus randomly combined
adenine pairs with guanine any cytosine pairs with thymine
The two sides of a D N A Molecule unwinds and separate
The D N a spreads into the floor nitrogen bases
nitrogen bases Floating in the Nucleus randomly combined
adenine pairs with guanine any cytosine pairs with thymine
The two sides of a D N A Molecule unwinds and separate
Answers
GPT-4o mini
During DNA replication, the following key events occur:
1. **Unwinding of the DNA Molecule**: The two strands of the DNA double helix unwind and separate, facilitated by the enzyme helicase. This creates a replication fork where the DNA is split into two single strands.
2. **Binding of Nitrogen Bases**: Once the strands are separated, free-floating nucleotides (containing the nitrogen bases adenine, thymine, cytosine, and guanine) in the nucleus align with their complementary bases on the single strands of DNA. Adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G).
3. **Formation of New Strands**: DNA polymerase is the enzyme responsible for synthesizing the new DNA strands by adding complementary nucleotides to the existing template strands. This results in two identical DNA molecules, each containing one original strand and one new strand (a process known as semiconservative replication).
4. **Proofreading and Repair**: DNA polymerase also checks for errors and can correct mismatches, ensuring the accuracy of DNA replication.
In summary, DNA replication involves unwinding of the double helix, complementary base pairing, and the synthesis of new strands, leading to the duplication of the genetic material.
1. **Unwinding of the DNA Molecule**: The two strands of the DNA double helix unwind and separate, facilitated by the enzyme helicase. This creates a replication fork where the DNA is split into two single strands.
2. **Binding of Nitrogen Bases**: Once the strands are separated, free-floating nucleotides (containing the nitrogen bases adenine, thymine, cytosine, and guanine) in the nucleus align with their complementary bases on the single strands of DNA. Adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G).
3. **Formation of New Strands**: DNA polymerase is the enzyme responsible for synthesizing the new DNA strands by adding complementary nucleotides to the existing template strands. This results in two identical DNA molecules, each containing one original strand and one new strand (a process known as semiconservative replication).
4. **Proofreading and Repair**: DNA polymerase also checks for errors and can correct mismatches, ensuring the accuracy of DNA replication.
In summary, DNA replication involves unwinding of the double helix, complementary base pairing, and the synthesis of new strands, leading to the duplication of the genetic material.