DNA Technology and Gene Analysis Quiz
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Questions and Answers

What is the purpose of DNA cloning in studying genes?

  • Comparing genes and alleles between individuals
  • Locating gene expression in a body
  • Determining the role of a gene in an organism
  • All of the above (correct)

What is the main function of gel electrophoresis in DNA analysis?

  • Identifying mRNA at particular developmental stages
  • Separating nucleic acids or proteins by size, electrical charge, and other properties (correct)
  • Isolating mRNA
  • Comparing patterns of gene expression in different tissues

What can Southern blotting be used for in DNA analysis?

  • Testing changes in gene expression during embryonic development
  • Identifying specific DNA fragments using labeled probes (correct)
  • Measuring the expression of thousands of genes at one time
  • Amplifying the gene of interest using primers

What is the purpose of reverse transcriptase-polymerase chain reaction (RT-PCR) in studying gene expression?

<p>Comparing mRNA from different developmental stages (C)</p> Signup and view all the answers

What is the role of DNA microarray assays in studying gene expression?

<p>Measuring the expression of thousands of genes at one time (A)</p> Signup and view all the answers

What are RFLPs (restriction fragment length polymorphisms) related to?

<p>Changes in DNA sequence that alter restriction sites (C)</p> Signup and view all the answers

What is the main purpose of Northern blotting in studying gene expression?

<p>Comparing mRNA from different developmental stages (C)</p> Signup and view all the answers

What does Southern blotting combine with gel electrophoresis to identify specific DNA fragments?

<p>Nucleic acid hybridization (A)</p> Signup and view all the answers

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