Question

Copy the paragraph below and paste it into the response section. There are three factual errors in the paragraph. The topic sentence is error-free, and not sentence contains more than one error. Replace the incorrect word or words with a term that corrects each sentence. Please put your correction in bold and red font. If you cannot bold and colour change, put three asterisks on either side of your correction (I prefer the colour method, but am sensitive to your computer skills! PCR is a powerful tool used to isolate and make large quantities of a defined DNA fragment from a complex genome. PCR takes advantage of electrophoresis and synthetic oligonucleotides. Its starting material can be as small as a single cell. Because amplification is exponential, a single DNA molecule can be copied into hundreds of copies in a single day. Once a reference DNA sequence has been established, PCR can be used to pick out variant forms of that sequence in any DNA sample. PCR amplifies any sequence between the ddNTPs used even if the order of bases is slightly different.

          Copy the paragraph below and paste it into the response section.
There are three factual errors in the paragraph. The topic sentence
is error-free, and not sentence contains more than one error.
Replace the incorrect word or words with a term that corrects each
sentence. Please put your correction in bold and red font. If you
cannot bold and colour change, put three asterisks on either side
of your ***correction*** (I prefer the colour method, but am
sensitive to your computer skills!
PCR is a powerful tool used to isolate and make large quantities
of a defined DNA fragment from a complex genome. PCR takes
advantage of electrophoresis and synthetic oligonucleotides. Its
starting material can be as small as a single cell. Because
amplification is exponential, a single DNA molecule can be copied
into hundreds of copies in a single day. Once a reference DNA
sequence has been established, PCR can be used to pick out variant
forms of that sequence in any DNA sample. PCR amplifies any
sequence between the ddNTPs used even if the order of bases is
slightly different.

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Added by Austin M.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Adi S

07/25/2022

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" The correct term should be **genome**. Show more…

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Copy the paragraph below and paste it into the response section. There are three factual errors in the paragraph. The topic sentence is error-free, and not sentence contains more than one error. Replace the incorrect word or words with a term that corrects each sentence. Please put your correction in bold and red font. If you cannot bold and colour change, put three asterisks on either side of your ***correction*** (I prefer the colour method, but am sensitive to your computer skills! PCR is a powerful tool used to isolate and make large quantities of a defined DNA fragment from a complex genome. PCR takes advantage of electrophoresis and synthetic oligonucleotides. Its starting material can be as small as a single cell. Because amplification is exponential, a single DNA molecule can be copied into hundreds of copies in a single day. Once a reference DNA sequence has been established, PCR can be used to pick out variant forms of that sequence in any DNA sample. PCR amplifies any sequence between the ddNTPs used even if the order of bases is slightly different.

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Transcript

00:01 When we speak about pcr, what we first need to understand that is that it is inclusion of polymerase chain reaction.

00:10 Now, what is polymerase chain reaction? as the name suggests, it is a chain reaction including the polymerase, which means a single copy of dna can be amplified into multiple coffees with the action of pcr.

00:29 Now, pcr has three steps, denaturation written as de, annealing written as ann and extension written as ex.

00:38 So, this comprises of one cycle.

00:43 And there could be several cycles of pcr in a given period of time in order to amplify the dna to many copies in particular.

00:55 Now coming to the given paragraph.

00:57 So first it says that pcr particularly is a powerful tool used to isolate and make large quantities of defined dna fragment.

01:09 This is true.

01:11 So there is no change in this.

01:13 So it makes dna fragment from a complex genome.

01:18 So pcr is a powerful tool used to amplify and make large quantities of dna fragment from a complex genome is correct.

01:25 So coming to the second statement.

01:27 Second statement says that pcr particularly takes advantage of electrophoresis written as e and synthetic oligo nucleotides written as ol particularly.

01:41 So that is also true because there is synthetic oligonucleotides and it also goes through the process of electrophoresis for the occurrence of several copies of dna.

01:52 Next coming to the statement which states that it starting it's starting, starting material can be as small as a single cell...

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