THat would be the enzyme DNA Polymerase III which attaches free floating nucleotides to the parent strand. But remember, they can only be attached to a free 3' position!
codon, photon mathmateis
DNA polymerase
DNA Polymerase
DNA Polymerase
It's the DNA polymerase that catalyzes the formation of phosphodiester bonds between the nucleotides during replication.
The specific type of mutation resulting from a mistake during DNA replication will depend on the nature of the mistake and the type of nucleotide substitution that occurred. Some possible types of mutations include point mutations (such as a substitution, insertion, or deletion of a single nucleotide), frameshift mutations, or silent mutations.
I think there is a mistake in the question. The DNA replication is said to be semi-conservative because during DNA replication one stand will be parental and the other will be newly formed. This happens due to the complimentary base pairing.
DNA Polymerase
DNA Polymerase
It's the DNA polymerase that catalyzes the formation of phosphodiester bonds between the nucleotides during replication.
Some mutations are due to errors in DNA replication. During the replication process, DNA polymerase chooses complementary nucleotide triphosphates from the cellular pool. Then the nucleotide triphosphate is converted to a nucleotide monophosphate and aligned with the template nucleotide. A mismatched nucleotide slips through this selection process only onece per 100,000 base pairs at most. The mismatched nucleotide causes a pause in replication, during which it is excised from the daughter strand and replaced with the correct nucleotide. After this so-called proofreading has occurred, the error rate is only one per 1 billion base pairs.
a nonsense mutation
The specific type of mutation resulting from a mistake during DNA replication will depend on the nature of the mistake and the type of nucleotide substitution that occurred. Some possible types of mutations include point mutations (such as a substitution, insertion, or deletion of a single nucleotide), frameshift mutations, or silent mutations.
Mismatch repair ... nucleotide excision repair
I think there is a mistake in the question. The DNA replication is said to be semi-conservative because during DNA replication one stand will be parental and the other will be newly formed. This happens due to the complimentary base pairing.
Nucleoside and nucleotide analogs inhibit viral replication by incorporating into the viral genome during replication. These analogs lack the necessary functional groups for further elongation of the viral genome, leading to termination of viral replication and inhibition of viral protein synthesis. This disruption ultimately stops the virus from spreading and replicating.
mutation
DNA itself is made up of nucleotides. Nucleotides links with each other to form a DNA chain. In the process of DNA replication, parent DNA strand needs to be duplicated. Hence, to make a new strand of DNA it requires nucleotides.
What prevents the wrong nucleotide from being added to the new strand during DNA replication? DNA polymerase 3 and DNA polymerase 1 can become what is known as exonucleases. an exonuclease can go back and "proofread" the replicated DNA and if there is a mistake, then everything beyond that incorrect nucleotide is removed and the DNA polymerase 3 will re-replicate from the bad point on. the protein p53 holds the cell in the G1 and S phase of replication which allows more time for proof reading the replicated DNA