template replication

biology

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July 14, 2026

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Template replication is a fundamental biological process where one strand of a DNA molecule serves as a mold for creating a new, complementary strand. This occurs during DNA replication, a crucial step before a cell divides.12

The DNA molecule has a double helix structure, resembling a twisted ladder. The "rungs" of this ladder are formed by pairs of bases: adenine always pairs with thymine, and guanine always pairs with cytosine. When DNA replicates, the two strands separate. Each separated strand then acts as a template, attracting complementary bases to form a new partner strand. This semiconservative replication ensures that each new DNA molecule consists of one original strand and one newly synthesized strand, accurately passing genetic information to daughter cells. This process is facilitated by enzymes.123

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reproduction
Molecular replication
…the process is called a template replication—one strand serves as the mold for the other. It should be added that the steps involving the duplication of DNA do not occur spontaneously; they require catalysts in the form of enzymes that promote the replication process.
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…the process is called a template replication—one strand serves as the mold for the other. It should be added that the steps involving the duplication of DNA do not occur spontaneously; they require catalysts in the form of enzymes that promote the replication process.
Read More

polymerase chain reaction
Process
The integral component is the template DNA—i.e., the DNA that contains the region to be copied, such as a gene. As little as one DNA molecule can serve as a template. The only information needed for this fragment to be replicated is the sequence of two short regions of nucleotides…
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The integral component is the template DNA—i.e., the DNA that contains the region to be copied, such as a gene. As little as one DNA molecule can serve as a template. The only information needed for this fragment to be replicated is the sequence of two short regions of nucleotides…
Read More

Kary Mullis
Invention of PCR
…to be copied, called the template DNA; two oligonucleotide primers (short segments of single-stranded DNA, each of which is complementary to a short sequence on one of the strands of the template DNA); nucleotides, the chemical building blocks that make up DNA; and a polymerase enzyme that copies the template…
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…to be copied, called the template DNA; two oligonucleotide primers (short segments of single-stranded DNA, each of which is complementary to a short sequence on one of the strands of the template DNA); nucleotides, the chemical building blocks that make up DNA; and a polymerase enzyme that copies the template…
Read More