Why is DNA Replication Such an Important Process?
Why is DNA Replication Such an Important Process? We have presented the real facts in this article.
We hope that you are accustomed to the term DNA replication. A lot of people are not pretty sure Why is DNA Replication Such an Important Process. The information saved within the DNA is important for an organism. In this article, we will discuss DNA replication and its importance. We hope your question will be solved at the end of this article.
If a cell dies the body needs to substitute that cell. The first thing to replace the cells is to copy the information that the cell carried. There’s a rich system of proteins and enzymes that unwind the DNA helix and help to replicate the DNA. If one cell dies it is often replaced through mitosis. The two daughter cells are just like the first cell whose DNA was copied.
Meiosis cell division occurs in the more complex organism to produce gametes. Each gamete contains the half amount of DNA of the parent cell. In sexual reproduction, the sperm fertilizes the egg to form a zygote.
Every cell has to replicate its DNA before cell division. Without DNA replication body cells would be not capable of restoring the dead cells. Also, the reproduction of a species will not occur. Without DNA replication life on the earth would not remain as existing.
In DNA replication cells generate new copies of existing DNA and deliver the DNA to the daughter cells during cell division. Without replication of DNA, each cell lacks enough heredity materials. Genetic materials give instructions for creating specific proteins in the cells. Hence, DNA replication is a very important process for a cell.
What is DNA replication?
DNA replication is the process in a living body, where the cells produce precise replicas of their genetic code. Where does DNA replication take place? It occurs inside the nucleus. The nucleotides make up the DNA of the cells. Nitrogenous bases, a five-carbon sugar, and a phosphate group combined to create nucleotides.
The four nitrogenous bases are adenine, guanine, cytosine, and thymine. The bound Pairs of nucleotides form a DNA double helix. The double-strand DNA helix is duplicated in the DNA replication process to create an indistinguishable new double-stranded DNA.
Steps of DNA Replication
DNA replication is a complex process that occurs inside the cells of living organisms. In this section, we will discuss the four basic steps of DNA replication.
Step 1: Replication Fork Formation.
We know that DNA double Helix is made with four nitrogenous bases. The pair between. Two stands are formed by adenine, guanine, cytosine, and thymine. The hydrogen bonds between the two strands are separated by the enzyme DNA helicase. This enzyme Isolates DNA double Helix strands into a Y shape. The Y Shape is termed a replication fork. The development of a replication fork is the first step of DNA replication.
Step 2: Primer Binding
The second step of DNA replication is primer binding. We hope that you’re familiar with the term leading strand and lagging strand. The enzyme DNA primers induce the formation of primer. Primer is a short sequence of RNA. The primer binds at the leading strand and lagging strand for the replication of a new DNA sequence.
Step 3: Elongation
Elongation is the process of creating new DNA strands. There are five types of DNA polymerase enzyme named as DNA polymerase enzyme I, II, III, IV, and V. DNA polymerase III plays a big role in DNA replication, and other types of polymerase enzymes are responsible for repairing and error checking of the DNA.
DNA polymerase III binds At the site of Primer to add new base pairs that are corresponding to the strand. The replication process is smooth and continuous in the leading strand, but It’s discontinuous in the lagging strands. For the formation of the new stand, the lagging strands need multiple primers. Here the short pieces of DNA on lagging strands are called Okazaki fragments. DNA polymerase enzymes add these short fragments together.
Step 4: Termination
Termination is the last step of DNA replication. Both continuous and discontinuous strands are formed in this step. Exonuclease Enzyme eliminates all RNA primers. The error checking and proofreading of the DNA sequence occur in this step.
Why Does DNA Replicate?
DNA replication is a much-needed process in the growth and renewal of the cells. Living organisms produce new cells To grow in size. As well as some cells are damaged over time.DNA replication is needed to replace the damaged cells and create new cells in an Organism. In the replication process, the cells generate new copies of genetic materials and transfer them to the daughter during cell division. That’s why DNA replication is a must-needed process.
Where does DNA replication start?
DNA replication starts at a specific point and we call it the origin of DNA replication. Two strands of DNA double Helix are separated by an enzyme called helicase. At the beginning of DNA replication, a replication fork is formed. Then the complementary base pairs are produced by the enzyme DNA polymerase. Therefore the origin is called the starting point of DNA replication.
Why does DNA replication occur before cell division?
DNA gives the instructions for producing the protein in the cell. DNA is the hereditary material that transfers characteristics to the new daughter cells. During mitosis cell division, two identical cells are produced from the mother cell. That’s why the cell replicates its DNA before the cell. Division.
What happens if DNA replication does not occur?
DNA replication is a must-needed process before cell division. For the growth of every Organism, cell division is needed. To repair the death cell and continue the cell cycle, DNA replication is a very important process. Without DNA replication no animal can create a new generation with identical characteristics or behavior.
What happens if DNA is altered?
What is the purpose of DNA replication? The main purpose is to transfer the identical DNA sequence to the new cells. If the DNA sequence is altered, it is called gene mutation. Faulty or wrong proteins can be made through gene mutation. This can create serious health issues and your body cannot function as it should.
We hope that you are now clear Why is DNA Replication Such an Important Process. DNA is the blueprint of life and it is called the hereditary material. After studying different resource articles we have presented you with authentic information. Hope you will benefit from this article. Still with us for more.Information about life science.