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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.1Medium

The optimal annealing temperature in PCR is typically set based on:

Q.2Medium

Which of the following is a limitation of conventional PCR?

Q.3Medium

What is the primary advantage of real-time PCR (qPCR) over conventional PCR?

Q.4Medium

Which type of restriction enzyme produces 'sticky ends'?

Q.5Medium

In RAPD-PCR, the primers are:

Q.6Medium

Which technique is most suitable for detecting SNPs (Single Nucleotide Polymorphisms)?

Q.7Medium

In DNA fingerprinting, which polymorphic markers are most commonly used in India?

Q.8Medium

Which of the following is a common application of PCR in diagnostic medicine?

Q.9Medium

What is the significance of dNTPs in PCR?

Q.10Medium

Real-time PCR differs from conventional PCR in that it:

Q.11Medium

Which annealing temperature is most appropriate for primers with a GC content of 50%?

Q.12Medium

In next-generation sequencing (NGS), what is the primary advantage of massively parallel sequencing over conventional Sanger sequencing?

Q.13Medium

What is the purpose of using a 'hot start' Taq polymerase in PCR?

Q.14Medium

In DNA barcoding for species identification, which gene region is most commonly used?

Q.15Medium

Which of the following best describes the principle of digital PCR (dPCR)?

Q.16Medium

In gene therapy, AAV (Adeno-associated virus) vectors are preferred because they:

Q.17Medium

What is the principle behind site-directed mutagenesis using PCR?

Q.18Medium

Which PCR variant is specifically designed for amplifying and detecting microRNA (miRNA) targets in clinical samples?

Q.19Medium

In RAPD-PCR (Random Amplified Polymorphic DNA), what is the primary application in agricultural biotechnology?

Q.20Medium

During DNA amplification using PCR, if the initial template has 2 copies, approximately how many copies will be present after 30 cycles (assuming 100% efficiency)?