作业帮The polymerase chain reaction (PCR) requires template DNA,pr
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The polymerase chain reaction (PCR) requires template DNA,primers,DNA polymerase,and __________.
A DNA ligase
B reverse transcriptase
C plasmid DNA
D a mixture of the four nucleotides A,T,C,G
E a mixture of the four fluorescent nucleotides that terminate elongation of the strand
One concern regarding the use of transgenic plants is the __________.
A inability to produce edible vaccines against infectious diseases
B loss of crop biodiversity,leading to potential widespread crop failures
C documentation of serious adverse health effects from transgenic products in the United States
D difficulty to regenerate entire plants with desired traits from plant cells with the desired DNA
E the ability of current transgenic varieties to pass the genetic trait on to the next generation
A DNA ligase
B reverse transcriptase
C plasmid DNA
D a mixture of the four nucleotides A,T,C,G
E a mixture of the four fluorescent nucleotides that terminate elongation of the strand
One concern regarding the use of transgenic plants is the __________.
A inability to produce edible vaccines against infectious diseases
B loss of crop biodiversity,leading to potential widespread crop failures
C documentation of serious adverse health effects from transgenic products in the United States
D difficulty to regenerate entire plants with desired traits from plant cells with the desired DNA
E the ability of current transgenic varieties to pass the genetic trait on to the next generation
D
AB
再问： AB?
再答： 第一题选D 第二题选A
再问： 应该选B==第二题
再答： 不好意思 ，第二题我拿不太准，所以开始选得AB，最后就选得A，结果错了……
AB
再问： AB?
再答： 第一题选D 第二题选A
再问： 应该选B==第二题
再答： 不好意思 ，第二题我拿不太准，所以开始选得AB，最后就选得A，结果错了……
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