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DNA Fingerprinting - 1 Video Lecture | Biology for JAMB
FAQs on DNA Fingerprinting - 1 Video Lecture - Biology for JAMB
| 1. What is DNA fingerprinting? |  |
Ans. DNA fingerprinting, also known as DNA profiling, is a method used to identify and compare individuals based on their unique DNA patterns. It involves the analysis of specific regions of an individual's DNA to create a unique genetic profile that can be used for identification purposes.
| 2. How is DNA fingerprinting done? | |
Ans. DNA fingerprinting is done by extracting DNA from a biological sample, such as blood or saliva, and amplifying specific regions of the DNA using a technique called polymerase chain reaction (PCR). The amplified DNA is then separated using a process called gel electrophoresis, which creates a pattern of DNA fragments. This pattern is visualized using a staining technique, and the resulting DNA fingerprint can be compared to other samples to determine genetic relatedness or identity.
| 3. What are the applications of DNA fingerprinting? | |
Ans. DNA fingerprinting has various applications in forensic science, paternity testing, and genetic research. In forensic science, it is used to match suspects to crime scene evidence or identify human remains. In paternity testing, it can establish biological relationships between individuals. In genetic research, DNA fingerprinting is used to study genetic variations, population genetics, and evolutionary relationships.
| 4. Can DNA fingerprinting be used to determine genetic diseases? | |
Ans. DNA fingerprinting is not specifically designed to determine genetic diseases. However, it can indirectly help identify genetic diseases by comparing the DNA profiles of affected individuals within a family. By studying the genetic variations and patterns within a family, scientists can identify potential disease-causing genes or genetic markers associated with certain disorders.
| 5. Is DNA fingerprinting 100% accurate? | |
Ans. While DNA fingerprinting is a highly accurate method, it is not 100% infallible. The accuracy of DNA fingerprinting depends on the quality of the DNA sample, the techniques used for analysis, and the interpretation of the results. Errors can occur due to contamination, technical issues during sample processing or analysis, or misinterpretation of the DNA profile. However, when performed correctly and with appropriate quality control measures, DNA fingerprinting is considered a reliable and powerful tool for identification and genetic analysis.
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