1. to 6. Fill in the blanks in the following protocol so that the desired experimental design feature is present (order is unimportant). For the answer you give, there should be no ambiguity or additional interpretation required to determine that the desired design feature is present. Your options are:

(A) Label: unknown A. Actual Contents: John Doe's sample
(B) Label: unknown B Actual Contents: Jane Smith's sample
(C) Label: unknown C Actual Contents: John Doe's sample
(D) Label: unknown D Actual Contents: Jane Smith's sample
(E) Label: Fred Jones Actual Contents: Fred Jones's sample
(F) Label: Sally Jones Actual Contents: Sally Jones's sample

Protocol: A DNA fingerprinting lab receives two samples from a police department in the mail. One tube is labeled ____________ while the other tube is labeled ____________.

1. and 2. Make the protocol fully blind and not replicated.

3. and 4. Make the protocol not blind in any way and not replicated.

5. and 6. Make the protocol replicated without the lab's knowledge.

7. The following letter was sent from a police department to a DNA forensics lab.

Dear Hal, 
 
         We have enclosed two DNA samples we would like you to match so that we may 
convict Don Smith of a particularly heinous murder.  We have enclosed: i) a sample from
blood found on Don Smith's shirt, and ii) a sample of blood taken from the victim.  We
are ready to proceed to trial, so please hurry.
  				    
                                               Sincerely,

   			          Aaron Ace 

In the following list, mark the ideal design features that are present.

 

Table of contents

Chapter 12. DNA testing was not safeguarded against error


Copyright 1996-2000 Craig M. Pease & James J. Bull. All rights reserved.
301d@bull.biosci.utexas.edu