Pollen Grains: Importance & Application in forensic science
A) Morphology
B) Palynology
C) Phytology
D) None
ANSWER-B
EXPLANATION
- Morphology – it is the structural study of plants or animals
- Phytology – the study of plants
- Palynology- Study of pollen grains. This term is derived from the Greek of Sprinkle and its literal meaning is the study of dust.
Q2) Who is the father of Indian Palynology?
A) P.K.K. Nair
B) C.V Raman
C) M.S. Swaminathan
D) None
ANSWER-A
EXPLANATION
- P.K.K. Nair (Parmeshwaran Krishnan Kutty Nair) is considered the father of Indian Palynology.
- C.V Raman – Raman spectroscopy is an analytical technique based on the scattering of light and has proven to be of great use to forensic investigations.
- M.S. Swaminathan – He is a biologist
Q3) Which of the following features of
pollen grains helps in Forensic Investigation?
A) Extremely small in size
B) Resistant to destruction
C) Huge Amount gets dispersed
D) All of the Above
ANSWER-D
Q4) Which technique of SEM(Scanning electron microscope) is used for
pollen analysis?
A) QEMSCAN
B) FESER
C) Both
D) None of the above
ANSWER-A
EXPLANATION
- QEMSCAN ( Quantitative Evaluation of Mineral by SEM). This technique allows the automated analysis of minerals and other substances.
- FESEM ( Field Emission SEM)
Q5) What is the primary use of palynology
in the forensic investigation?
A) Establish the link between two places
B) provides a link to
separate incident scenes.
C) provides a link between objects and places.
D) All the above.
ANSWER-D
Q6) Which microscope is used to compare the
pollen grain samples collected from the crime scene?
A) Stereo Microscope
B) Polarizing Microscope
C) TEM
D) Compound Microscope
ANSWER-C
EXPLANATION
TEM(Transmission electron microscopes)- simply refers to any type of microscopy in which a light source is transmitted through the sample allowing the specimen to be viewed through a lens.
Stereo Microscope- the stereomicroscope is used for preliminary evidence evaluations. It also allows for comparative examinations for evidence such as paint, physical matches, questioned documents, and impression evidence.
Polarizing Microscope – Polarized light microscopy (PLM) is a technique commonly used in forensic science in identifying and characterizing trace evidence found at crime scenes, such as fibers, hairs, paints, and glass fragments.
Compound Microscope - A compound microscope is of great use in pathology labs so as to identify diseases. Various crime cases are detected and solved by drawing out human cells and examining them under the microscope in forensic laboratories.
Q7) How do pollen grains help in crime-solving?
A) Estimation of time at which a crime
took place
B) How old the body is
C) Type of Injury
D) None
ANSWER-A
EXPLANATION
In the investigation of an older crime scene, pollen grains collected may actually be released at a different time of the year indicating the crime occurred during a particular period.
Q8) The study of pollen grains in crime
scenes helps to determine?
A) Type of crime
B) Type of injury
C) Travel history of the item/Body
D) All Of the above.
ANSWER-C
EXPLANATION
By analyzing the pollen recovered from the suspected item it may be possible to trace that item belongs to a particular country.
Q9) Is Pollen grain Physical Evidence?
A) No, it’s a trace evidence
B) yes
C) Both
D) None
ANSWER-A
EXPLANATION
It is trace evidence. As the size of the grains is so small.
Q10) How Pollen grains from crime is
collected?
A) Handpicking
B) Adhesive tape Method
C) Scrapping
D) None
ANSWER-B
0 Comments