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DNA is copied in a process called DNA replication. During DNA replication, the two strands of the DNA molecule separate. Then free DNA nucleotides pair with their complimentary nucleotides according to the base-pairing rule on each of the old strands of DNA. Once the process is complete, the result is two identical DNA molecules, each with one old strand of DNA and one new strand of DNA. Refer to the related link for an illustration.
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Why was it difficult to use DNA as evidence in a crime pcr was invented?
you need many copies of DNA for DNA fingerprinting
What is the name for the process when new copies of DNA are made?
The process of creating new copies of DNA is called DNA replication. During replication, the double-stranded DNA unwinds and each strand serves as a template for synthesizing a new complementary strand. This process is essential for cell division, ensuring that each new cell receives an identical copy of the DNA.
What is one way that changes occur in a DNA Sequence?
Mutations (point mutations, inversions, translocations...) cause changes in DNA Simply stated, a mistake made while DNA copies causes changes in DNA.
How do the new copies of DNA compare to the original DNA?
DNA replicates using the process called semiconservative replication. An original DNA molecule is complementary to the replicated molecule, which means that they are identical copies of each other.
Why did the invention of pcr make DNA fingerprint possible?
PCR made it possible to produce enough copies for reliable tests.
How many copies of DNA are made?
2
Why was it difficult to use DNA as evidence in a crime pcr was invented?
you need many copies of DNA for DNA fingerprinting
Why was it difficult to used DNA as evidence in a crime before PCR was invented?
you need many copies of DNA for DNA fingerprinting
Why was it difficult to use DNA as evidence in a crime before PCR was inventes?
you need many copies of DNA for DNA fingerprinting
Process by which DNA copies itself?
Replication! 1) DNA splits 2) DNA copies 3) left with 2 copies of DNA! :)
What is amplification when referring to DNA synthesis?
Amplification is the production of many copies of a particular DNA segment. The copying repeats - so that copies of the copies are made. This results in many, many copies in only a few cycles. PCR (Polymerase Chain Reaction) is the most common method of amplifying DNA.
If you compare the original DNA to the two copies that are made after replication occurs what would you find?
Unless mutation occur the two copies of DNA that are made after replication are identical to its original form. Thus continuous replication of DNA in the chromosomes does not alter its nature.
What is one way that can occur in a DNA sequence?
Mutations (point mutations, inversions, translocations...) cause changes in DNA Simply stated, a mistake made while DNA copies causes changes in DNA.
Messenger RNA copies a code from what?
it copies a code from the DNA
Which types of RNA copies DNA's instructions In the nucleus?
Messenger RNA (mRNA) copies DNA's instructions in the nucleus.
What is a method of making any copies of DNA?
One method of making copies of DNA is through a process called polymerase chain reaction (PCR). In PCR, a DNA template is mixed with primers, nucleotides, and DNA polymerase, and subjected to cycles of heating and cooling to amplify the target DNA region. This results in millions of copies of the DNA target.
The process by which DNA copies itself is called?
DNA replication
