DNA Profiling and Forensic Biology Practice Questions

Question 1

What is the technique for accurate quantification of gene expression?

Accepted Answer

Real-Time Reverse Transcriptase PCR

Answer

PCR

Answer

Reverse Transcriptase PCR

Answer

Northern blot

Question 2

The fundamental equilibrium principle of population genetics was given by?

Accepted Answer

Hardy Weinberg

Answer

Sewall Wright

Answer

J. B. S. Haldane

Answer

R. A. Fisher

Question 3

Which of the following is used to detect abnormal gene sequences EXCEPT?

Accepted Answer

Flow cytometry

Answer

RFLP analysis

Answer

Pyrosequencing

Answer

FISH

Question 4

Gene amplification is achieved through

Accepted Answer

Polymerase Chain Reaction

Answer

DNA strand hybridization

Answer

In situ DNA hybridization

Answer

Ligase chain reaction (LCR)

Question 5

DNA fingerprinting is used for paternity testing and forensic identification of suspects. Which of the following is the most accurate description of DNA fingerprinting?

Accepted Answer

DNA can be isolated from blood, skin, or sperm and analyzed for variable patterns of restriction fragments arising from tandemly repeated sequences (microsatellites)

Answer

DNA is isolated from blood, skin, or sperm and its fragment size distribution is analyzed by gel electrophoresis

Answer

DNA is isolated from blood, skin, or sperm and hybridized with probes from the HLA locus to visualize HLA gene patterns

Answer

DNA is copied from blood, skin, or sperm RNA using reverse transcriptase and analyzed for the pattern of complementary DNAs

Question 6

Which of the following tests for identifying blood stains is shown in the image below?

Accepted Answer

Hemin crystal test

Answer

Hemochromogen crystal test

Answer

Leucomalachite green test

Answer

Luminol test

Question 7

The Takayama test is primarily used for what purpose?

Accepted Answer

To determine the crystalline structure of a stain.

Answer

To identify the species of origin of a stain.

Answer

To perform blood grouping.

Answer

None of the above.

Question 8

What is a confirmatory test for species of origin?

Accepted Answer

Ouchterlony Test

Answer

Origin Test

Answer

Olympus Test

Answer

SOO Test

Question 9

Which of the following is the best method for paternity testing?

Accepted Answer

Microsatellite analysis

Answer

Karyotyping

Answer

Northern blot analysis

Answer

All of the above

Question 10

Which test is performed to determine if a biological stain is of human origin?

Accepted Answer

Precipitant test

Answer

Florence test

Answer

Takayama test

Answer

Barberio's test

DNA Profiling and Forensic Biology

Study Resources

Lessons

Questions

Flashcards

Lessons

DNA Structure and Function

DNA Extraction Methods

PCR Technology

Short Tandem Repeat Analysis

Y-STR and Mitochondrial DNA

DNA Databases

Population Genetics in Forensics

Statistical Interpretation

Body Fluid Identification

Bloodstain Pattern Analysis

Emerging DNA Technologies

Quality Assurance in DNA Testing

Practice Questions

Flashcards

About DNA Profiling and Forensic Biology for NEET-PG

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