Determination of genomic dna library

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Reference no: EM1395733

4. A company has designed a new weight loss drug. They want to determine if the drug is carcinogenic, so they use it in the Ames test. Bacteria used in the Ames test are His-auxotrophs, and all of the bacteria are plated on minimal media without histidine. The results are

- Test substance + rat liver + distilled water= 500
- Test substance + distilled water=4
- Distilled water=8
- Rat liver enzymes=1
- Positive control that has a known mutagen=675

The test substance is:
A) mutagen
B) a mutegen, but only when metabolized
C) not a mutagen
D) can't tell - there is contamination in the experiment

5. Which of the following would you use to find a telomeric sequence?
A) genomic DNA library
B) cDNA library
C) mRNA library
D) Answers B and C
E) All of the above

6. What is genomic DNA library
A) A collection of vectors, each containing a fragment of the original genome
B) A complete sequence of the genetic material in an organism
C) An electronic file that may be used for additional genetic analysis
D) A collection of mRNA from a given cell
E) None of the answers are correct

Reference no: EM1395733

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