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justwild
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In semi-conservative DNA replication why does it happen that one of the new strands formed is discontinuous while other is continuous?
Semi-conservative DNA replication is a process where the double-stranded DNA molecule unwinds and each strand serves as a template for the synthesis of a new complementary strand. This results in two identical DNA molecules, each with one original and one newly synthesized strand.
Semi-conservative DNA replication ensures the accurate transmission of genetic information from parent to offspring. It also allows for genetic variation through mutations and facilitates DNA repair mechanisms.
In conservative replication, the original double-stranded DNA molecule remains intact and a completely new molecule is synthesized. In dispersive replication, the new DNA molecule contains fragments of both the original and newly synthesized DNA. Semi-conservative replication is a combination of both, with each resulting DNA molecule containing one original and one newly synthesized strand.
The main enzyme involved in semi-conservative DNA replication is DNA polymerase, which adds complementary nucleotides to the template strands. Other enzymes, such as helicase, primase, and DNA ligase, also play important roles in unwinding the DNA, creating RNA primers, and joining the newly synthesized DNA fragments.
DNA replication is an essential step in cell division as it ensures that each daughter cell receives a complete set of genetic information. Without accurate DNA replication, cells may not function properly and can lead to genetic disorders or cell death.