THE MOLECULAR BASIS OF INHERITANCE
THE HUMAN GENOME
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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allele length is studied
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shows locations of genes
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uses gel electrophoresis
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may use a pedigree
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Detailed explanation-1: -Therefore, the option that best describes what is meant by DNA fingerprinting is given by answer choice (C). DNA fingerprinting is a technique that analyses the patterns produced by unique repetitive DNA sequences in the genome of an individual.
Detailed explanation-2: -[Editors note: DNA fingerprinting uses gel electrophoresis to distinguish between samples of the genetic material. The human DNA molecules are treated with enzymes that chop them at certain characteristic points, thereby reducing the DNA to a collection of more manageably sized pieces.
Detailed explanation-3: -Gel electrophoresis separates DNA fragments based on size.
Detailed explanation-4: -DNA can be drawn through the agarose gel using an electric current because the negatively charged DNA molecules are attracted to a positively charged electrode.
Detailed explanation-5: -The AFLP technique is a powerful DNA fingerprinting technology applicable to any organism without the need for prior sequence knowledge. The protocol involves the selective PCR amplification of restriction fragments of a total digest of genomic DNA, typically obtained with a mix of two restriction enzymes.