98. Clustering in a gene expression analysis via microarray experiment refers to 1. cluster of probes used to monitor gene expression 2. cluster of cDNAs printed on the array 3. […]
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DBT BET JRF 2023 Previous Year Questions and Video solutions
Progesterone-only pills and emergency contraception
115. Why progesterone-only contraceptives are not recommended as emergency (post-coitus) contraceptives? 1. Progesterone-only contraceptives have high failure rates 2. Progesterone acts on the reproductive tract as a whole 3. Progesterone […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Which Statement About Microalgae Is NOT True?
97. Which of the following is NOT true for microalgae? 1. Microalgae can perform photosynthesis only if the light source is available 2. Respiration by the microalgae continues throughout light […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Drug of Choice for Chlamydia trachomatis Infection
117. Which one of the following is the drug of choice for sexually transmitted disease caused by Chlamydia trachomatis? 1. Ampicillin 2. Azithromycin 3. Ciprofloxacin 4. Metronidazole Explanation: Chlamydia trachomatis […]
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What Is Erythroblastosis Fetalis? Understanding Hemolytic Disease of the Newborn
96. Hemolytic disease of the newborn develops when maternal 𝐼𝑔𝐺 antibodies specific for fetal bloodgroup antigens cross the placenta and destroy fetal red blood cells. The disease is called 1. […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Understanding Chemostat Culture Dynamics: Key Concepts and Misconceptions
95. For a chemostat culture operating under steady state, which of the following statements is NOT true? 1. At a dilution rate equal to maximum specific growth rate, the culture […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Solvent Flow Rate Calculation in Single-Stage Continuous Extraction
94. In a single stage continuous extraction system, solvent is added to cell-free culture filtrate containing the product. If the partition coefficient of the product is 5, then to extract […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
Matching Cytokines with Their Immune Functions
119. Match List I with List II LIST I […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
What Is the BLOSUM Scoring Matrix Used For?
93. BLOSUM scoring matrix is used for 1. alignment of DNA sequences only 2. alignment of DNA and protein sequences only 3. alignment of protein sequences only 4. homology modelling […]
DBT BET JRF 2023 Previous Year Questions and Video solutions
How to Calculate Del Factor in Sterilization of Fermentation Media
92. 1000 𝑑𝑚3 of fermentation medium containing 1 × 104 Bacillus thuringenesis cells per 𝑐𝑚3 is sterilized to achieve probability of contamination of 1 in 1000. Calculate the Del factor. […]
