Biotechnology - MCQ Practice Questions

What is the optimal annealing temperature range for most PCR reactions?

Which thermostable DNA polymerase is most commonly used in standard PCR?

In a typical PCR cycle, DNA denaturation occurs at approximately which temperature?

What is the primary function of dNTPs in PCR?

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

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

What is the theoretical maximum amplification of a DNA segment after 30 PCR cycles?

What is the primary role of dNTPs (deoxynucleotide triphosphates) in the PCR reaction mixture?

Which of the following is the most commonly used culture medium for animal cell culture in laboratories?

What is the primary purpose of using a laminar flow hood in cell culture?

Which of the following characteristics is essential for continuous cell lines?

What is the normal pH range required for optimal mammalian cell culture?

Which growth factor is primarily responsible for promoting cell proliferation in mammalian cell culture media?

What is the primary purpose of using serum-free media (SFM) in industrial cell culture?

Which of the following cell lines is commonly used for monoclonal antibody production?

The doubling time of mammalian cells cultured in vitro typically ranges between:

Which disinfectant is most commonly used for sterilizing bioreactor surfaces and cell culture equipment?

Which growth phase of bacterial culture is characterized by maximum specific growth rate and exponential increase in cell number?

What is the optimal pH range for mammalian cell culture?

Which of the following is NOT a component of basal culture media?