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It is currently unknown how DNA originated. It came from RNA but how RNA formed is also unknown.
The study which involves the origin of DNA and RNA through purely naturalistic means is abiogenesis. There are basic ideas about organic molecules formed, but the origin of self-replicating molecules is merely speculation at this point. The question has beguiled scientists for a very long time especially because the odds of a molecule, as complex as a DNA molecule, spontaneously forming on its own is 1 chance in 1040,000
DNA replication is a process that occurs in the nucleus of a cell. It is carried out by a complex machinery consisting of enzymes, proteins, and other molecules that work together to accurately copy the genetic information stored in DNA molecules. This process is essential for cell division and the transmission of genetic information to the next generation.
DNA replication is a process to create 2 new DNA molecules by splitting 1 DNA molecule. This occurs when a cell is about to divide and needs its own copy of DNA. The process consists of many different proteins and enzymes. This includes Gyrase, Helicase, Polymerase III, Primase (or RNA Polymerase), SSB's (or Single Stranded Binding Proteins), Ligase and Polymerase I. Each part has its own role for DNA replication to be successful.
DNA does not really 'come' from any cell. Your DNA is the product of the fusion of 50% of your father's DNA and 50% of your mother's DNA (note that due to dominance and recessiveness of alleles, not necessarily 50% of changes will come from each parent). DNA is found in all (with a few exceptions) cells, in the nucleus.
DNA polymerases comes from the grouping of enzymes. It creates DNA molecules from nucleotides and helps in the process of replicating DNA strands.
From the chromosomes which consist of genes and genes consist of alleles which determine the trait.
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What are the areas on DNA where replication occurs called?
DNA replication begins in areas of DNA molecules are called origins of replication.
Compare the number of replication forks in prokaryotic and eukaryotic DNA during replication?
Prokaryotic DNA replication has a single origin of replication, leading to two replication forks. In contrast, eukaryotic DNA replication has multiple origins of replication, resulting in multiple replication forks forming along the DNA molecule.
DNA is copied during a process called?
DNA is copied during a process called DNA replication. This process occurs in the nucleus of a cell and involves making an exact copy of the original DNA molecule. DNA replication is essential for cell division and passing genetic information from one generation to the next.
Is DNA transciption is another word for DNA replication?
No, DNA transcription and DNA replication are two distinct processes. DNA transcription is the process by which a messenger RNA (mRNA) molecule is synthesized using DNA as a template, while DNA replication is the process by which a cell makes an identical copy of its DNA.
In prokaryotes where does DNA replication occur in the cell?
In prokaryotes, DNA replication occurs in the cytoplasm. The replication process begins at the origin of replication on the DNA molecule and proceeds bidirectionally. Multiple replication fork structures are formed to speed up the replication process.
What are the areas on DNA where replication occurs called?
DNA replication begins in areas of DNA molecules are called origins of replication.
Compare the number of replication forks in prokaryotic and eukaryotic DNA during replication?
Prokaryotic DNA replication has a single origin of replication, leading to two replication forks. In contrast, eukaryotic DNA replication has multiple origins of replication, resulting in multiple replication forks forming along the DNA molecule.
DNA is copied during a process called?
DNA is copied during a process called DNA replication. This process occurs in the nucleus of a cell and involves making an exact copy of the original DNA molecule. DNA replication is essential for cell division and passing genetic information from one generation to the next.
What does DNA replication make?
DNA replication produces a copy of the DNA. At the same time the cell in which the DNA is to be found splits into two with a copy of the DNA in each. DNA replication is caused by cell replication during the process of mitosis.
What process makes a copy of a DNA molecule?
Transcription.
What is the site of DNA replication in eukaryotes?
The site of DNA replication in eukaryotes is the nucleus. Replication occurs in the nucleus because this is where the DNA is stored. The process involves unwinding the DNA double helix and synthesizing new strands of DNA using the existing strands as templates.
What is it called when a DNA copies itself?
DNA replication
Where does DNA replication takes place?
DNA replication takes place in NUCLEUS
Is DNA transciption is another word for DNA replication?
No, DNA transcription and DNA replication are two distinct processes. DNA transcription is the process by which a messenger RNA (mRNA) molecule is synthesized using DNA as a template, while DNA replication is the process by which a cell makes an identical copy of its DNA.
How many strands are there at the beginning of DNA replication?
At the beginning of DNA replication there are two strands of DNA nucleotides.
In prokaryotes where does DNA replication occur in the cell?
In prokaryotes, DNA replication occurs in the cytoplasm. The replication process begins at the origin of replication on the DNA molecule and proceeds bidirectionally. Multiple replication fork structures are formed to speed up the replication process.
What happens at the DNA replication fork?
The DNA replication fork is where the replication origin forms the Y shape. The replication fork moves down the DNA strand to the strand's end, resulting in every replication fork having a twin.
