130. Human genome contains approximately 25,000 genes, but the number of proteins in a human cell is estimated to be approximately 250,000. Which of the following can explain this difference? […]
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DBT BET JRF 2023 Previous Year Questions and Video solutions
Scaling Up a Mechanically Agitated Bioreactor for Aerobic Microbial Processes
87. A mechanically agitated bioreactor for an aerobic microbial process can be scaled up from pilot plant data to commercial plant on the basis of 1. equal impeller size 2. […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Plastid Transformation Upon Light Exposure: A Look at Etioplasts
131. Which of the following types of plastids is formed first when Etioplast types are exposed to light? 1. Gerontoplast 2. Amyloplast 3. Pregranal plastid 4. Mature Chloroplast Question: Which […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Challenges in Scaling Up Mammalian Cell Cultures for Therapeutic Protein Production
132. Mammalian cell cultures are difficult to scale up in conventional bio-reactors for the production of therapeutic proteins primarily because of 1. High oxygen demand 2. High shear sensitivity 3. […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Understanding the Photosynthetic Proteins and Their Encoding Genes
86. Match photosynthetic proteins (List I) with the respective encoding genes (List II) LIST I […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Techniques for Resolving Large DNA Fragments: The Role of Pulse Field Gel Electrophoresis
133. The technique commonly used to resolve large sized DNA fragments (>20 kb) following digestion with restriction enzymes is 1. Polyacrylamide gel-electrophoresis 2. Capillary electrophoresis 3. Pulse field gel-electrophoresis 4. […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Understanding Gibberellin (GA) Signal Transduction in Arabidopsis
85. Following are certain statements regarding Gibberellin (GA) signal transduction in Arabidopsis plants: A. DELLA is a negative regulator of growth. B. GA is not required for the interaction of […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Types of Intellectual Property Rights: Understanding Patent, Industrial Design, and More
134. Which one of the following is NOT a type of Intellectual property rights? 1. Patent 2. Articraft 3. Industrial Design 4. Geographical Indicator Question: Which one of the following […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Understanding Secondary Messengers: Which One Is Not Considered?
84. Which one of the following is not considered as a secondary messenger? 1. cAMP 2. ATP 3. 𝐶𝑎2+ 4. 𝐼 What Are Secondary Messengers in Cell Signaling? In cellular […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Enzyme Responsible for Adding an Extra Adenine at the 3′ End of a DNA Strand
135. Which of the following enzymes adds an extra Adenine at the 3′ end of a DNAstrand? 1. Klenow DNA polymerase 2. Taq DNA polymerase 3. Reverse transcriptase 4. Topoisomerase […]
