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DNA melting and unwinding at the origin of replication.
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∙ 13y ago
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When does DNA replacation occur?
Whenever cells divide.
What does the process of carcinogenesis usually begin with?
irreversible change in the cell DNA
Where does Duplication of DNA takes place?
In the nucleus before cell division. The DNA is located in the nucleus to begin with, and as it is double stranded.
What k must happen before meiosis can begin?
A duplication of the chromosomes is what must happen before meiosis can begin.
Which job must enzymes do before replication can begin?
They must unwind part of the original DNA molecule.
When does DNA replacation occur?
Whenever cells divide.
When does replacation occur?
Whenever cells divide.
Will people sprout wings when injected with bird DNA?
The human body would reject the DNA and the body would metabolize it and begin using it as fuel for the proteins and amino acids to begin rebuilding the damaged DNA.
When does DNA replications begin?
7:00 pm.
How DNA is destroyed by virus?
It is not destroyed. It is "hijacked" by a virus so that the host DNA will begin to make virus parts.
Role of additives in PCR?
Reactants: (dNTPs, template DNA (to be amplified), primers(bind to DNA to begin elongation of strand), DNA Polymerase (elongate DNA), & MgCl2) in buffer + H2O
What does the process of carcinogenesis usually begin with?
irreversible change in the cell DNA
What is an exon's role in DNA?
The exon codes for the opening sequence of DNA for protein synthesis. It is a sequence of nucleotides that code for the RNA to begin transcription of the DNA to RNA protein.
Where does Duplication of DNA takes place?
In the nucleus before cell division. The DNA is located in the nucleus to begin with, and as it is double stranded.
What k must happen before meiosis can begin?
A duplication of the chromosomes is what must happen before meiosis can begin.
What does the synthesis of a new strand of DNA begin?
Following the initiation of DNA replication, the first step is the synthesis of a short RNA primer.
Why exonucleases are not used in r DNA technology?
Endonucleases are used in biotechnology because they are able to be applied to a specific part of a DNA sequence and will cut the DNA only in these locations. Exonucleases on the other hand have the following issues: 1) An exonuclease will digest and entirely consume DNA/RNA. As opposed to cut a specific location of DNA, they will eat the entire strand if they are not stopped. 2) They will only begin digestion at the ends of the DNA/RNA molecule. Circular plasmid DNA will not be affected by an exonuclease, because there are no beginnings or ends to the DNA sequence. 3) More over, as mentioned in (2) they will only begin digestion at the ends of the DNA sequences, thus they are much less accurate in where they begin cutting the DNA/RNA. Because of this lack of control of exonucleases, they are difficult to use and generally not used in biotechnological techniques.
