Question

Variations in restriction enzyme cutting patterns of DNA from different individuals are called:

A) STRs (Short Tandem Repeats)
B) RFLPs (Restriction Fragment Length Polymorphisms)
C) Minisatellites
D) Microsatellites
E) VNTRs (Variable Number Tandem Repeats)
Please select the correct option(s).

Answer 1

Variations in restriction enzyme cutting patterns of DNA from different individuals are known as Restriction Fragment Length Polymorphisms (RFLPs), which create a unique pattern of bands that serve as genetic fingerprints.

Step-by-step explanation:

Variations in restriction enzyme cutting patterns of DNA from different individuals are called Restriction Fragment Length Polymorphisms (RFLPs). This biotechnological method involves the use of restriction enzymes to cleave DNA at specific sequences. Since individuals have different DNA sequences, especially in regions of polymorphism, the digestion process by restriction enzymes results in a unique pattern of DNA fragments or 'bands' when analyzed by gel electrophoresis. The uniqueness of these bands is what has conventionally been used as a form of DNA 'fingerprinting'. RFLPs are a powerful tool for genetic mapping, paternity testing, and forensic analysis.