which of the following best describes the complete sequence of steps occurring during every cycle of PCR?

1. The primers hybridize to the target DNA.

2. The mixture is heated to a high temperature to denature the double stranded target DNA.

3. Fresh DNA polymerase is added.

4. DNA polymerase extends the primers to make a copy of the target DNA.

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#Question id: 19357

#Unit 13. Methods in Biology

BAC vectors are based on _________ plasmid.

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#Question id: 9258

#Unit 9. Diversity of Life Forms

Which of the following is characteristic of most terrestrial biomes?

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#Question id: 760

#Unit 1. Molecules and their Interaction Relevant to Biology

Which force can stabilize a DNA double-helix?

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#Question id: 5361

#Unit 8. Inheritance Biology

The pedigree shows the inheritance of a RFLP marker through three generations in a single family. A total of 8 alleles (numbered to the left of the blots) are present in the family. The RFLPs of each member of the family are placed directly below his (squares) or her (circles) symbol and RFLP numbers. In Above pedigree, which of the following are not children of second generation parent?

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#Question id: 23246

#Unit 13. Methods in Biology

Which element in the Sanger sequencing actually terminates the chain elongation?