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what is dnA replication in reproduction..?....
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here goes ur answer my dear friend.
In molecular biology, DNA replicationis the biological process of producing two identical replicas of DNA from one original DNA molecule. This process occurs in all living organisms and is the basis for biological inheritance.DNA is made up of a double helix of two complementary strands.
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jst chillax....
In molecular biology, DNA replicationis the biological process of producing two identical replicas of DNA from one original DNA molecule. This process occurs in all living organisms and is the basis for biological inheritance.DNA is made up of a double helix of two complementary strands.
hope it helps you.
jst chillax....
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Answer:
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In what does DNA replication occurs?
DNA replication occurs during S phase of interphase. Prophase is the stage of mitosis which is characterized by spindle formation, shortening and thickening of chromosomes, disintegration of nuclear envelope and disappearance of nucleolus. Metaphase proceeds prophase and is marked by movement of chromosomes towards the equator of cell mediated by kinetochore microtubules of spindle fibres. Telophase is the last phase of mitosis wherein daughter chromosomes are now at opposite poles. Cytokinesis refers to division of cytoplasm after telophase of mitosis leading to formation of two daughter cells.
Now,moving to the actual question,
What is DNA replication?
DNA replication is semi-conservative in nature, as because at the onset of the replication the two parent strands are separate and act as a template for the daughter DNA strand. The new strand formed has complimentary base pairs as compared to the parent cell.
DNA replication is semi-discontinuous because, at the onset of replication, when the helicase unzips the parent strands, the DNA polymerase synthesizes the continuous complimentary strand in 5'-3' direction known as leading strand while it is unable to work in 5'-3' direction so it synthesizes the discontinuous fragments on the lagging strands.
_____________________________
In what does DNA replication occurs?
DNA replication occurs during S phase of interphase. Prophase is the stage of mitosis which is characterized by spindle formation, shortening and thickening of chromosomes, disintegration of nuclear envelope and disappearance of nucleolus. Metaphase proceeds prophase and is marked by movement of chromosomes towards the equator of cell mediated by kinetochore microtubules of spindle fibres. Telophase is the last phase of mitosis wherein daughter chromosomes are now at opposite poles. Cytokinesis refers to division of cytoplasm after telophase of mitosis leading to formation of two daughter cells.
Now,moving to the actual question,
What is DNA replication?
DNA replication is semi-conservative in nature, as because at the onset of the replication the two parent strands are separate and act as a template for the daughter DNA strand. The new strand formed has complimentary base pairs as compared to the parent cell.
DNA replication is semi-discontinuous because, at the onset of replication, when the helicase unzips the parent strands, the DNA polymerase synthesizes the continuous complimentary strand in 5'-3' direction known as leading strand while it is unable to work in 5'-3' direction so it synthesizes the discontinuous fragments on the lagging strands.
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