Molecular mass of a protein CANNOT be determined by: (1) MALDI-TOF (2)Gel filtration Chromatography (3) Chromatofocusing (4) SDS-PAGE How to Determine the Molecular Mass of a Protein: Methods and Techniques […]
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DBT BET JRF 2021 Previous Year Questions and Video solution
How Glucose Causes Catabolite Repression of the lac Operon in Bacteria
Which one of the following molecules causes catabolite repression of lac operon? (a)Arabinose (b)Galactose (c)Glucose (d)Lactose Catabolite Repression of the lac Operon in Bacteria by Glucose The lac operon […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How Many Chromatids Are Present in Metaphase After Telophase?
If a cell carries 21 pairs of chromosomes just after completion of mitotic telophase, how many chromatids will be there in metaphase? (1) 21 (2) 42 (3) 84 (4) 168 […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Immune System Cells Neutrophils Platelets B- cells T-cells and Their Functions
26. Match the components of list 1 with those in list II List I […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Collagen Fibers: Key Characteristics and Functions
24. Which one of the following is NOT a characteristic of a collagen fibre? (a)Each of the strand is independently stable due to the presence hydrogen bonds (b)It is a […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Which Amino Acid Pairing Is Not Based on Polarity? Understanding Glu and Ile
Which of the following is NOT a rational grouping of amino acids bases on their polarity properties? 1. Val and Leu 2. Met and Leu 3. Asn and Gin 4. […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Fetal Karyotypes Lead to Non-Survival at Birth
A fetus with which one of the following karyotypes will NOT survive at birth? (1) 45, Y (2) 47, XY+13 (3) 45, X (4) 47, XY+21 Understanding Fetal Karyotypes and […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Role of Proline in Disrupting α-Helices and β-Strands
23. Which one of the following amino acids has a strong tendency to disrupt αhelices and ß-strands? (a)Alanine (b)Glutamate (c)Proline (d)Tyrosine Article: Introduction Proteins are complex molecules that fold into […]
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How Statins Inhibit Cholesterol Biosynthesis: A Detailed Explanation
Statins inhibit biosynthesis of: (1) Prostaglandins (2) Leukotrienes (3) Serotonin (4) Cholesterol How Statins Inhibit Cholesterol Biosynthesis: A Detailed Explanation Statins are a class of medications commonly prescribed to lower […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding the Beta-Lactam Ring: Where Is It Found in Antibiotics?
22. Beta-lactam ring is presentin: Options:- (a)Chloramphenicol (b)Erythromycin (c)Penicillin (d)Tetracycline Introduction The beta-lactam ring is a crucial structural component found in a specific class of antibiotics known as beta-lactam antibiotics. […]
