Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons who may have been involved. Frequently, the size of the DNA sample is extremely small, too small for easy analysis. Which of the following laboratory procedures could criminologists use to amplify the amount of DNA present?

a
Cloning and gel electrophoresis

b
Cloning and polymerase chain reaction (PCR)

c
DNA splicing and polymerase chain reaction (PCR)

d
Vector amplification and DNA splicing

Question

21-11-2021
Biology

contestada

Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons who may have been involved. Frequently, the size of the DNA sample is extremely small, too small for easy analysis. Which of the following laboratory procedures could criminologists use to amplify the amount of DNA present?

a
Cloning and gel electrophoresis

b
Cloning and polymerase chain reaction (PCR)

c
DNA splicing and polymerase chain reaction (PCR)

d
Vector amplification and DNA splicing

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Oseni Oseni · Answer 1 · 2021-12-01T11:09:27+01:00

Criminologists could use cloning and polymerase chain reaction techniques to amplify DNA samples.

Cloning involves the production of multiple copies of a sample. One way of producing multiple copies of DNA is polymerase chain reactions (PCR).

PCR makes use of thermal cycling to generate alternate heating and cooling to drive DNA melting and enzyme-driven replication of the biomolecule.

With a small amount of DNA, a PCR machine can generate millions of copies in order to study it in specific detail. The original DNA becomes exponentially amplified within a short period.

More on PCR can be found here: https://brainly.com/question/14843791?referrer=searchResults