Q.21 Two charges 10 × 10-8 C and – 6 ×10-8 C are located 16 cm apart. The point(s) on the line joining the two charges, where the net electric […]
![Q.21 Two charges 10 × 10-8 C and - 6 ×10-8 C are located 16 cm apart. The point(s) on the line joining the two charges, where the net electric potential is zero, will be [Take the potential at infinity to be zero] (A) 10 cm and 40 cm away from the positive charge on the side of the negative charge (B) 10 cm and 40 cm away from the negative charge on the side of the positive charge (C) 10 cm away from the negative charge on the side of the positive charge (D) 40 cm away from the negative charge on the side of the positive charge](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_21-2.jpg)
Blog
IIT JAM Biotechnology Previous Year Question Paper 2025
IR Carbonyl Stretching Frequencies in Acetophenone Derivatives
Q.20 The IR stretching frequency of the carbonyl (C=O) group of a typical saturated ketone is 1715 cm-1 . The IR stretching frequencies for the carbonyl groups present in three […]
IIT JAM Biotechnology Previous Year Question Paper 2025
Which Cell Type Does HIV-1 Infect?
Q.19 Which of the following cell types is infected by the human immunodeficiency virus-1? (A) T-helper lymphocytes (B) T-cytotoxic lymphocytes (C) Plasma cells (D) B-lymphocytes HIV-1 Targets T-Helper Lymphocytes: MCQ […]
IIT JAM Biotechnology Previous Year Question Paper 2025
GABA Receptors Humans
Q.18 The receptors for gamma amino butyric acid (GABA) in humans are (A) ligand gated chloride ion channels (B) ligand gated sodium ion channels (C) ligand gated potassium ion channels […]
IIT JAM Biotechnology Previous Year Question Paper 2025
Eukaryotic Cell Cycle Order
Q.17 Which of the following represents the CORRECT order of events in the eukaryotic cell cycle? (A) G1 S G2 M (B) S G1 M […]
IIT JAM Biotechnology Previous Year Question Paper 2025
Eukaryotic Asymmetric Cell Division
Q.16 Which of the following statements about eukaryotic asymmetric cell division is NOT correct? (A) Chromosomes are unequally distributed in the daughter cells (B) Chromosomes are equally distributed in the […]
IIT JAM Biotechnology Previous Year Question Paper 2025
First Evidence of Gene Transfer
Q.15 The first evidence of ‘gene transfer’ was demonstrated in 1928 by (A) Joshua Lederberg in Escherichia coli (B) Frederick Griffith in Streptococcus pneumoniae (C) Joshua Lederberg in bacteriophages (D) […]
IIT JAM Biotechnology Previous Year Question Paper 2025
Peptidoglycan Biosynthesis
Q.14 The final stage of peptidoglycan (PG) biosynthesis is marked by PG cross-link formation and remodeling. Which of the following enzymes does NOT take part in these processes? (A) Transglycosidases […]
IIT JAM Biotechnology Previous Year Question Paper 2025
Bacterial Cloning Vectors vs Expression Vectors
Q.13 Bacterial cloning vectors and bacterial expression vectors are differentiated by the presence of (A) antibiotic resistance gene cassette (B) origin of replication (C) promoter and ribosome-binding site (D) unique […]
IIT JAM Biotechnology Previous Year Question Paper 2025
HIV-1 Reverse Transcriptase
Q.12 Which of the following activities is NOT possessed by the human immunodeficiency virus-1 reverse transcriptase? (A) Synthesis of DNA from RNA (B) Synthesis of DNA from DNA (C) Degradation […]
