OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identifying the person whose DNA was left at a crime scene
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Determining the father of a child
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Finding the likelihood of inheriting a genetic disorder
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Figuring out which species are more closely related
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Detailed explanation-1: -PCR is a technique by itself, and is not an application of DNA fingerprinting; it is rather a technique used in DNA fingerprinting.
Detailed explanation-2: -DNA fingerprinting is a chemical test that shows the genetic makeup of a person or other living things. It’s used as evidence in courts, to identify bodies, track down blood relatives, and to look for cures for disease.
Detailed explanation-3: -A DNA fingerprint is created by first digesting a DNA sample with a restriction enzyme. Restriction enzymes recognize very specific DNA sequences (such as 5’-GAATTC-3’), which are usually palindromes. Palindromic sequences allow the same sequence to be recognized on both strands of DNA (Figure 5, top).
Detailed explanation-4: -DNA Sequencing Sequencing allows clinicians to determine if a gene or the region that regulates a gene (regulatory region of DNA) contains changes, or variants, linked to a disorder.