iGET

Biotechnology - MCQ Practice Questions

Practice free Biotechnology multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

260 questions | 100% Free

Q.161Easy

What is the primary function of dNTPs in PCR?

Q.162Medium

Real-time PCR (qPCR) differs from conventional PCR in that it:

Q.163Medium

Which of the following is a common application of multiplex PCR?

Q.164Medium

In reverse transcription PCR (RT-PCR), which enzyme is critical for the first step?

Q.165Medium

What is the primary advantage of digital PCR (dPCR) over conventional qPCR?

Q.166Medium

AFLP (Amplified Fragment Length Polymorphism) technology combines which two DNA techniques?

Q.167Medium

In forensic applications, why are microsatellites (STRs) preferred over SNPs for individual identification?

Q.168Hard

What is the primary principle of High-Resolution Melting (HRM) analysis in qPCR?

Q.169Hard

In competitive PCR, what is the role of the internal control DNA?

Q.170Hard

Which PCR variant is most suitable for detecting point mutations in genomic DNA?

Q.171Hard

In the context of DNA barcoding for species identification, which gene region is commonly used for plants?

Q.172Medium

What is the primary limitation of PCR when amplifying GC-rich sequences?

Q.173Hard

In SNP genotyping using TaqMan chemistry, what is the function of MGB (Minor Groove Binder)?

Q.174Hard

Which DNA amplification technique is used to amplify sequences adjacent to a known sequence boundary?

Q.175Medium

In the diagnosis of genetic disorders, why is allele-specific PCR (AS-PCR) preferred for detecting known mutations?

Q.176Medium

What is the primary advantage of using nested PCR in pathogen detection?

Q.177Medium

In whole genome amplification (WGA) using multiple displacement amplification (MDA), which enzyme is used?

Q.178Easy

Which enzyme is primarily responsible for extending DNA strands during the elongation phase of PCR?

Q.179Easy

In a standard PCR cycle, at what temperature is the DNA double helix typically denatured?

Q.180Medium

Which of the following statements about primer design for PCR is INCORRECT?