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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.101Medium

Which hormone is most critical for cell growth and proliferation in serum-containing culture media?

Q.102Medium

What is the significance of calculating the cell doubling time in cell culture?

Q.103Medium

Which of the following is NOT a method for cryopreservation of cell cultures?

Q.104Medium

What is the Hayflick limit?

Q.105Medium

Which technique is used to determine cell viability immediately after thawing from cryopreservation?

Q.106Medium

What is the primary advantage of using serum-free media in cell culture?

Q.107Medium

Which of the following best describes contact inhibition in normal cell cultures?

Q.108Medium

An animal cell culture shows signs of contamination with bacteria. Which characteristic would NOT be observed?

Q.109Medium

What is the optimal CO₂ concentration typically maintained in mammalian cell culture incubators?

Q.110Medium

Which of the following applications of cell culture is most relevant for drug testing in India's pharmaceutical industry (2024-2025)?

Q.111Medium

Which parameter is most critical for maintaining pH stability in a large-scale bioreactor?

Q.112Medium

What is the significance of cryopreservation in cell culture banking?

Q.113Medium

In the context of Indian pharmaceutical biotech (2024-25), which cell line is most commonly used for recombinant protein production?

Q.114Medium

Which of the following best describes the G0 phase in the cell cycle?

Q.115Medium

What is the primary advantage of using suspension culture systems over adherent culture for large-scale production?

Q.116Medium

During scale-up of cell culture from 2L to 200L bioreactor, which parameter becomes increasingly challenging to maintain?

Q.117Medium

What is the primary function of osmolarity/osmotic pressure control in cell culture media?

Q.118Medium

In viral vaccine production using cell culture, which cell line is commonly used for influenza vaccine manufacturing?

Q.119Medium

What is the role of trypsin in cell culture preparation and maintenance?

Q.120Medium

Which of the following statements about lactate production in mammalian cell culture is correct?