what is dna replication called semiconservative?
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DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.
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Just as helicase is responsible for unwinding the DNA strand, DNA polymerase is responsible for replicating the strand once it unwinds and separates. DNA is made up of a sugar-phosphate ladder and a nucleotide base. ... As there is more than one type of helicase, there is also more than one type of polymerase.
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DNA Replication How DNA Makes Copies of Itself. Before a cell divides, its DNA is replicated (duplicated.) Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner.
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DNA polymerase is responsible for the process of DNA replication, during which a double-stranded DNA molecule is copied into two identical DNA molecules. Scientists have taken advantage of the power of DNA polymerase molecules to copy DNA molecules in test tubes via polymerase chain reaction, also known as PCR.
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One of these is called the leading strand, and it is replicated continuously in the 3' to 5' direction. The other strand is the lagging strand, and it is replicated discontinuously in short sections. These sections are called Okazaki fragments, and they are short lengths of DNA.
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['Helicase. Uses the hydrolysis of ATP to "unzip" or unwind the DNA helix at the replication fork to allow the resulting single strands to be copied.', "Primase. Polymerises nucleotide triphosphates in a 5' to 3' direction. ... ", 'DNA Polymerase III. ... ', 'DNA Polymerase I. ... ', 'Ligase. ... ', 'Telomerase. ... ', 'Nuclease. ... ', 'Topoisomerase.']
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Answer and Explanation: DNA replication for a cell occurs during Synthesis Phase of meiosis. This phase is one of three during the Interphase stage of meiosis.
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B), replication of DNA does not occur in mitosis. Replication of DNA occurs during S phase, an entirely different phase of cell division where the cell prepares for division by going through the necessary process of duplicating chromosomes. Mitosis comprises 4 phases: prophase, metaphase, anaphase, and telophase.
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The first one is called the leading strand. This is the parent strand of DNA which runs in the 3' to 5' direction toward the fork, and it's able to be replicated continuously by DNA polymerase. The other strand is called the lagging strand.
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Because plasmids are small, they can easily reanneal forming dsDNA. Genomic DNA, however, is too long to reanneal fully, and instead it tends to tangle so that complimentary strands remain separated. During centrifugation, gDNA (bound to protein) forms a pellet while plasmid DNA remains soluble.
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DNA replication is kind of like mitosis, where DNA is copied and has a "clone" of itself. It is useful for biological inheritance and is the basis of all of it. Protein synthesis makes proteins, while DNA replication makes DNA . DNA replication occurs in the nucleus and produces two identical sets of DNA.
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Reproduction in prokaryotes is asexual and usually takes place by binary fission. The DNA of a prokaryote exists as as a single, circular chromosome. Prokaryotes do not undergo mitosis; rather the chromosome is replicated and the two resulting copies separate from one another, due to the growth of the cell.
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DNA gyrase (also referred to as topoisomerase) reduces supercoiling (relaxes tension) which builds up during DNA unwinding, preventing DNA breakage.
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The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. For prokaryotes, the cell cycle, called Binary Fission, allows for them to live on by dividing into two new daughter cells.
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Outcome of DNA replication is best describes by new DNA molecule consists of one new strand and one old strand of DNA. Explanation: Both DNA and RNA are capable of undergoing self-replication.
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DNA replication is the action of DNA polymerases synthesizing a DNA strand complementary to the original template strand. ... In eukaryotes, the vast majority of DNA synthesis occurs during S phase of the cell cycle, and the entire genome must be unwound and duplicated to form two daughter copies.
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The outcome of DNA replication is two DNA nearly identical DNA double helix molecules. Each DNA is made up of one DNA strand from the original DNA and a newly created strand. There are two differences between human DNA and bacterial DNA.