One way of identifying a bacterium that causes a disease is to use PCR and gel electrophoresis. This process works even when many other types of bacteria are present because A. PCR increases the amount of specific DNA sequences. B. other bacteria can't survive the PCR reaction. C. the disease-causing bacterium is larger than most other bacteria. D. PCR increases the amount of DNA from harmful bacteria only.

Which process occurs when a bacteriophage transfers a gene from one bacterium to another?

Read the passage below. Then answer the question.

The polymerase chain reaction (PCR) is a technique used in genetic engineering and applied in procedures such as DNA fingerprinting and genetic screening. This technique allows a small sample of DNA to be copied many times. Genetic analysis, which determines the presence of restriction length polymorphisms (DNA fingerprinting), or mutations on specific genes, can be performed with PCR-amplified DNA samples.

@ What could be inferred as the meaning of the term "PCR-amplified DNA" above?

A. a kind of PCR that is used on large samples of DNA

B. DNA fingerprinting that results in amplification of a PCR technique

C. a sample of DNA that has been replicated many times using PCR

D. a sequence of DNA that codes for an auditory trait such as sensitive hearing

Briefly explain how the polymerase chain reaction is used to amplify a specific DNA sequence. What are some of the limitations of PCR?

Why is agarose DNA gel electrophoresis used to analyze the PCR products?

What is the term for transferring donor DNA to a recipient bacterium via a bacteriophage?

Describe the blender experiments of Hershey and Chase and what the results revealed about DNA's function.

Which are the nitrogenous bases found in DNA?

Present an overview of two classical experiments that demonstrated that DNA is the genetic material. Can RNA be the genetic material? Explain.

Who concluded that the genetic material of a bacteriophage is DNA?

What are the requirements for DNA to be the genetic material?

Which process involves the deliberate alteration of an organism’s genetic material? a. bioremediation b. biotechnology c. decomposition d. recombinant DNA

Explain Griffith's transformation experiments. What did he conclude from them?

The initial mechanism for repairing nucleotide errors in DNA is ________. a. mismatch repair, b. DNA polymerase proofreading, c. nucleotide excision repair, d. thymine dimers.