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 […]
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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. […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Understanding Reverse Transcription: How mRNA Is Transcribed into DNA
The sequence of first strand of DNA obtained after reverse transcription of a bacterial mRNA is the same as: (1) Anti-sense DNA strand (2) Sense DNA strand (3) mRNA (4) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Impact of 4-Letter Codons on Protein Translation: How Many Amino Acids Could Be Recognized?
If the codons for translation of mRNAs to proteins were 4 letters long instead of 3what would be the maximum number of hypothetical amino acids that could uniquely be recognized […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Who Is Good in Biology, Cricket, Chemistry, and Football? A Logical Breakdown
Keshav and Kunal are good in Maths and Chemistry. Sumit and Keshav are good in Maths and Biology. Vineet and Kunal are good in Cricket and Chemistry. Sumit, Vineet and […]
DBT BET JRF 2019 Previous Year Questions and Video solution
How to Reduce Competitive Inhibition of Enzymes
Competitive inhibition of an enzyme can be reduced by: (1) Reducing the amount of the substrate (2)Increasing the amount of the substrate (3) Decreasing the amount of the enzyme (4) […]
