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Is it true that Replication occurs simultaneously at many points on a DNA molecule?
Yes it is. The eukaryotic DNA polymerase works much slower than the prokaryotic DNA polymerase, working at around 50 bases per second. With as many as 80 million bases to replicate the job is achieved in about one hour by having many replication forks. The simple answer: It's quicker.
What else can I help you with?
Why does DNA replication take place on many places on the molecule simultaneously?
DNA replication occurs at multiple sites on the molecule simultaneously because the DNA double helix is very long and the cell needs to replicate its genetic material quickly and efficiently. This process involves the initiation of replication at various points along the DNA strand, allowing for faster synthesis of new DNA strands. Multiple replication forks form to facilitate the simultaneous copying of different segments of the DNA molecule.
In order to replicate where do DNA molecules separate?
DNA molecules separate or unwind at specific sites known as replication origins. These regions serve as starting points for the enzyme complex that unwinds the DNA strands, creating a replication fork. DNA replication occurs bidirectionally from each origin, with the two strands being replicated simultaneously.
Human chromosomes have hundreds of where the dna is unzipped so replication can begin?
The human chromosomes have hundreds of origins of replication where the DNA unwinds and replication begins. These origins are specific DNA sequences that mark the starting points for the replication process by recruiting the necessary enzymes and proteins. Replication occurs bidirectionally from each origin, ensuring that the entire chromosome is faithfully duplicated.
Does replication of DNA begin at one end and process to the other?
Yes, absolutely; from the dsDna's five-prime [5'] end toward its three prime [3'] end.
What are the parts of a phosphlipid molecule?
There are two parts to the phospholipid molecule. One is a hydrophobic hydrocarbon chain, which points away from water. The other is a hydrophilic phosphate ionic group, often represented as the "head" of the molecule, which points towards water.
Why does DNA replication take place on many places on the molecule simultaneously?
DNA replication occurs at multiple sites on the molecule simultaneously because the DNA double helix is very long and the cell needs to replicate its genetic material quickly and efficiently. This process involves the initiation of replication at various points along the DNA strand, allowing for faster synthesis of new DNA strands. Multiple replication forks form to facilitate the simultaneous copying of different segments of the DNA molecule.
In order to replicate where do DNA molecules separate?
DNA molecules separate or unwind at specific sites known as replication origins. These regions serve as starting points for the enzyme complex that unwinds the DNA strands, creating a replication fork. DNA replication occurs bidirectionally from each origin, with the two strands being replicated simultaneously.
Does DNA replication start at only one place in the DNA, or does it occur in many places at once?
DNA replication starts at multiple points along the DNA strand simultaneously. This process allows for efficient and rapid duplication of the genetic material.
Human chromosomes have hundreds of where the dna is unzipped so replication can begin?
The human chromosomes have hundreds of origins of replication where the DNA unwinds and replication begins. These origins are specific DNA sequences that mark the starting points for the replication process by recruiting the necessary enzymes and proteins. Replication occurs bidirectionally from each origin, ensuring that the entire chromosome is faithfully duplicated.
Eukaryotic organisms solve the problem of time constraints on replication of DNA by?
Eukaryotic organisms solve the problem of time constraints on replication of DNA by using multiple origins of replication along each chromosome. This allows for DNA replication to occur simultaneously at several points, speeding up the process. Additionally, eukaryotic cells have specialized enzymes and proteins that help ensure efficient and accurate replication of DNA.
Does replication of DNA begin at one end and process to the other?
Yes, absolutely; from the dsDna's five-prime [5'] end toward its three prime [3'] end.
What are the parts of the phosopholipid molecule?
There are two parts to the phospholipid molecule. One is a hydrophobic hydrocarbon chain, which points away from water. The other is a hydrophilic phosphate ionic group, often represented as the "head" of the molecule, which points towards water.
How does a solid molecule move?
they vibrate around fixed points
What reproduction occurs?
Reproduction occurs at different points for different organisms. In humans, it occurs when sperm fertilizes egg.
How do eukaryotes speed the process of replication-since they have multiple long chromosomes?
The eukaryotic genome is so much larger than the prokaryotic genome that it would not be practical to rely on a single origin of replication site when copying it for cell division. By incorporating several, the eukaryotic cell can divide without unnecessarily long delay in chromosomal replication.
How does DNA replication differ in prokaryotes and eukaryotes?
1. In eukaryotic cells replication forks make several start sites along the DNA strand which forms replication "bubbles" which get larger the more DNA is copied, and stop when DNA replication is complete. In prokaryotic cell's DNA is formed in a loop, two replication forks start along one part of the loop (origin replication) and the replication forks copy DNA in opposite directions until they meet at the other side of the loop, making an exact copy of DNA.
Why do molecular compounds have low melting points and low boiling points relative ionic substances?
The bonds in the molecule are weaker.
