List of top Forensic Science Questions

Which are the early signs of death ? A. Loss of elasticity of the skin and facial pallor
B. Primary relaxation of the muscles
C. Changes in the eye
D. Algor mortis
E. Adipocere formation
Choose the correct answer from the options given below :
According to the “Rule of Nine” the head and neck area covers :
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): A gas stream, the so-called carrier gas, is fed into the column at a constant rate.
Reason (R): The carrier gas is chemically inert and is generally nitrogen or helium.
In the light of the above statements, choose the most appropriate answer from the options given below :
Order these spectroscopy techniques by typical sample preparation complexity for solids (least to most). A. Raman with microscope
B. XPS
C. mid-IR transmission (KBr pellet)
Choose the correct answer from the options given below :
Arrange the following band-broadening contributions in LC (Liquid Chromatography) from those most reduced by decreasing particle size to those least affected. A. Eddy diffusion
B. Longitudinal diffusion
C. Mass transfer resistance
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Which of the following mode of death has been described as Udbandhanam in Ashrutakripaksha by Kautilya ?
Arrange the following components of a high performance liquid chromatography (HPLC) instrument in the correct order of the mobile phase flow path. A. Pumping system
B. Injection valve
C. Detector
D. Column
Choose the correct answer from the options given below :
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): High Performance Liquid Chromatography (HPLC) is a very useful technique for separating non-volatile or thermally fragile species.
Reason (R): The stationary phase in HPLC is a liquid, which protects the sample from high temperatures.
In the light of the above statements, choose the most appropriate answer from the options given below :
Match List - I with List - II. List - I List - II
A. Catagen stage I. Middle layer of the hair
B. Anagen stage II. Transition stage in hair growth
C. Cortical fusi III. Small cells located in Cortex
D. Medulla IV. Rapid growth stage of hair
Choose the correct answer from the options given below :
Match List - I with List - II. List - I List - II
A. Phenolphthalein assay I. When oxidised and catalyzed by heme, it emits an intense yellowish green light
B. Benzidine assay II. It is catalyzed by heme with hydrogen peroxide as the oxidant
C. Fluorescein assay III. These are heme derivatives in which ferrous ion of the heme forms two bonds with nitrogenous base
D. Hemochromagen crystal assay IV. It is catalyzed by heme to produce blue to dark blue colour
Choose the correct answer from the options given below :
Which of the following detector of Gas Chromatography is most suitable for detecting halo-compounds ?
Which of the following electrophoresis method is most suitable for separating large protein complexes in their active and native forms ?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Electrophoresis separates materials according to their migration rates on a stationary solid phase.
Reason (R): Electrophoresis is most useful for characterizing proteins and DNA in dried blood.
In the light of the above statements, choose the most appropriate answer from the options given below :
Identify the correct sequence for DNA extraction : A. Phenol-chloroform mixture is added to separate proteins from DNA.
B. Double stranded DNA molecules are transferred for analysis.
C. Unwanted proteins or cellular debris are separated by centrifugation.
D. SDS and Proteinase K are added to break open the cell membrane.
Choose the correct answer from the options given below :
Match List - I with List - II. List - I List - II
A. Part of the solid portion of the blood that oxygenates the cells of the body I. Antibody
B. Part of the solid portion of the blood that fights infection II. Antigen
C. Substance found on the outside surface of a red blood cell III. Leukocytes
D. Substance found in the plasma of the blood that reacts with an antigen IV. Red blood cells
Choose the correct answer from the options given below :
Which of the following assays enable multiplexed analysis of a dozen or more SNP markers simultaneously ?
Pyrosequencing
Luminex
SNaPshot
Taqman
Choose the correct answer from the options given below :
Which of the following compounds are Purines ? A. Adenine
B. Thymine
C. Cytosine
D. Guanine
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How can azoospermic semen be separated from female fraction ? A. Laser capture micro-dissection
B. Y-Chromosome-specific markers
C. Differential extraction
D. FTA paper card
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The expression of the two RT-PCR based analysis can be used for identification of salivary ? A. Kallikrein 3
B. Spsherin
C. Histatin 3
D. Statherin
Choose the correct answer from the options given below :
Diatoms are mostly golden-brown in colour because of which of the following pigment ?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): When using intercalating dye, all the molecules must be able to clearly separate in terms of size.
Reason (R): Using intercalating dye permits analysis of DNA fragments in single colour only.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following method is preferable for collecting blood clot for DNA evidence samples ?
What causes seminal stains to fluoresce under ultraviolet light ?
The innermost layer of pollen wall, intine is made of :
The condition of a collapsed lung or atelectasis, can result from an accumulation of which substance in the pleural cavity ?