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Question for IIT JAM Biotechnology - Quiz / Questions / MCQ in English

Last Update on : October 12, 2026

Duration: 180 · Questions: 60 · Max Marks: 60

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Latest IIT JAM Biotechnology Exam Question (Objective Questions), MCQ in English

Subjects : IIT JAM Biotechnology

Question Bank IIT JAM Biotechnology Exam - English

IIT JAM Biotechnology

Q 1 :
What is the primary structural difference between prokaryotic and eukaryotic cells?
  1. A.Presence of a cell wall
  2. B.Presence of a nucleus
  3. C.Presence of ribosomes
  4. D.Presence of mitochondria
Q 2 :
Which organelle is primarily responsible for protein synthesis in eukaryotic cells?
  1. A.Ribosomes
  2. B.Golgi apparatus
  3. C.Lysosomes
  4. D.Mitochondria
Q 3 :
What is the main component of the plasma membrane?
  1. A.Carbohydrates
  2. B.Cholesterol
  3. C.Proteins
  4. D.Phospholipid bilayer
Q 4 :
Which structure in eukaryotic cells is responsible for ATP production?
  1. A.Mitochondria
  2. B.Nucleus
  3. C.Endoplasmic reticulum
  4. D.Lysosomes
Q 5 :
What type of signaling involves hormones acting on distant target cells?
  1. A.Paracrine signaling
  2. B.Autocrine signaling
  3. C.Synaptic signaling
  4. D.Endocrine signaling
Q 6 :
What is the role of the extracellular matrix in animal cells?
  1. A.Energy storage
  2. B.Structural support and cell adhesion
  3. C.Protein synthesis
  4. D.DNA replication
Q 7 :
Which process is programmed cell death?
  1. A.Necrosis
  2. B.Mitosis
  3. C.Apoptosis
  4. D.Meiosis
Q 8 :
During which stage of the cell cycle does DNA replication occur?
  1. A.S phase
  2. B.G1 phase
  3. C.G2 phase
  4. D.M phase
Q 9 :
What is the final stage of mitosis where daughter cells are formed?
  1. A.Prophase
  2. B.Metaphase
  3. C.Telophase
  4. D.Anaphase
Q 10 :
How many daughter cells are produced after meiosis?
  1. A.Two
  2. B.One
  3. C.Three
  4. D.Four
Q 11 :
Which of the following statements about prokaryotic cells is/are correct?  
  1. A.They lack a defined nucleus.  
  2. B.They contain membrane-bound organelles like mitochondria.  
  3. C.Their DNA is circular and found in the nucleoid region.  
  4. D.They have a cell wall made of cellulose.  
Q 12 :
In eukaryotic cells, which organelle(s) is/are involved in protein synthesis and modification?  
  1. A.Rough endoplasmic reticulum.  
  2. B.Golgi apparatus.  
  3. C.Lysosomes.  
  4. D.Peroxisomes.  
Q 13 :
Which of the following is/are component(s) of the plasma membrane according to the fluid mosaic model?  
  1. A.Phospholipid bilayer.  
  2. B.Integral proteins.  
  3. C.Peripheral proteins.  
  4. D.Nuclear envelope.  
Q 14 :
Cell communication involves which of the following signalling pathway(s)?  
  1. A.Endocrine signalling.  
  2. B.Paracrine signalling.  
  3. C.Autocrine signalling.  
  4. D.Synaptic signalling.
Q 15 :
Which of the following is/are true about the extracellular matrix (ECM)?  
  1. A.It provides structural support to cells.  
  2. B.It is involved in cell adhesion.  
  3. C.It regulates cell migration and differentiation.  
  4. D.It is absent in prokaryotes.  
Q 16 :
Apoptosis is characterized by which of the following feature(s)?  
  1. A.Programmed cell death.  
  2. B.Cell shrinkage and DNA fragmentation.  
  3. C.Inflammatory response.  
  4. D.Activation of caspases.  
Q 17 :
Which stage(s) of the cell cycle involve(s) DNA replication?  
  1. A.G1 phase.  
  2. B.S phase.  
  3. C.G2 phase.  
  4. D.M phase.  
Q 18 :
Mitosis includes which of the following phase(s)?  
  1. A.Prophase.  
  2. B.Metaphase.  
  3. C.Anaphase.  
  4. D.Telophase.  
Q 19 :
Which of the following is/are difference(s) between mitosis and meiosis?  
  1. A.Mitosis produces two diploid cells, meiosis produces four haploid cells.  
  2. B.Meiosis involves crossing over, mitosis does not.  
  3. C.Mitosis occurs in somatic cells, meiosis in germ cells.  
  4. D.Both have identical stages.  
Q 20 :
Endocrine signalling involves which of the following?  
  1. A.Hormones released into the bloodstream.  
  2. B.Long-distance communication.  
  3. C.Target cells with specific receptors.  
  4. D.Direct cell-to-cell contact.  
Q 21 :
Which organelle(s) is/are involved in cellular detoxification?  
  1. A.Peroxisomes.  
  2. B.Smooth endoplasmic reticulum.  
  3. C.Mitochondria.  
  4. D.Nucleus.  
Q 22 :
The cytoskeleton includes which component(s)?  
  1. A.Microtubules.  
  2. B.Actin filaments.  
  3. C.Intermediate filaments.  
  4. D.Ribosomes.  
Q 23 :
Which of the following is/are true about gap junctions?  
  1. A.Allow passage of small molecules between cells.  
  2. B.Found in animal cells.  
  3. C.Involved in electrical signalling.  
  4. D.Equivalent to plasmodesmata in plants. 
Q 24 :
Cell cycle checkpoints occur at which point(s)?  
  1. A.G1/S transition.  
  2. B.G2/M transition.  
  3. C.Metaphase-anaphase transition.  
  4. D.Cytokinesis.  
Q 25 :
Which of the following is/are involved in meiosis I?  
  1. A.Synapsis of homologous chromosomes.  
  2. B.Crossing over.  
  3. C.Separation of sister chromatids.  
  4. D.Reduction in chromosome number. 
Q 26 :
Paracrine signalling is characterized by which feature(s)?  
  1. A.Local action on nearby cells.  
  2. B.Diffusion of signalling molecules.  
  3. C.No requirement for bloodstream.  
  4. D.Long-term effects.  
Q 27 :
Which of the following organelle(s) has/have its own DNA?  
  1. A.Mitochondria.  
  2. B.Chloroplasts.  
  3. C.Nucleus.  
  4. D.Golgi apparatus.  
Q 28 :
Apoptosis can be triggered by which pathway(s)?  
  1. A.Intrinsic (mitochondrial) pathway.  
  2. B.Extrinsic (death receptor) pathway.  
  3. C.Perforin/granzyme pathway.  
  4. D.Necrosis pathway. 
Q 29 :
The nuclear envelope is composed of which layer(s)?  
  1. A.Inner membrane.  
  2. B.Outer membrane.  
  3. C.Nuclear pores.  
  4. D.Cytoplasmic membrane.  
Q 30 :
Which of the following is/are function(s) of lysosomes?  
  1. A.Digestion of macromolecules.  
  2. B.Autophagy.  
  3. C.Recycling of cellular components.  
  4. D.Protein synthesis.  
Q 31 :
What is the number of lipid layers in the plasma membrane of a eukaryotic cell?
    Q 32 :
    How many chromosomes are present in a human somatic cell during G1 phase?
      Q 33 :
      What is the approximate diameter (in micrometers) of a typical eukaryotic cell?
        Q 34 :
        How many types of histone proteins are found in a nucleosome core?
          Q 35 :
          What is the number of membranes surrounding a mitochondrion?
            Q 36 :
            In a cell, what is the pH of the lysosomal lumen (approximately)?
              Q 37 :
              How many stages are there in the cell cycle of a eukaryotic cell?
                Q 38 :
                What is the number of daughter cells produced after mitosis in a single eukaryotic cell?
                  Q 39 :
                  What is the number of cells produced after one complete meiosis from a single cell?
                    Q 40 :
                    In human cells, how many autosomes are present?
                      Q 41 :
                      What is the number of checkpoints in the eukaryotic cell cycle?
                        Q 42 :
                        How many types of cyclins regulate the cell cycle in eukaryotes?
                          Q 43 :
                          What is the approximate percentage of water in the cytoplasm of a typical cell?
                            Q 44 :
                            How many signaling molecules are required for paracrine signaling to occur over short distances?
                              Q 45 :
                              What is the number of caspase enzymes typically activated during apoptosis?
                                Q 46 :
                                How many layers of peptidoglycan are found in the cell wall of Gram-positive bacteria?
                                  Q 47 :
                                  What is the number of membranes in a chloroplast?
                                    Q 48 :
                                    In meiosis, how many rounds of cell division occur to produce gametes?
                                      Q 49 :
                                      What is the approximate length (in nanometers) of a typical eukaryotic flagellum?
                                        Q 50 :
                                        How many types of G-proteins are commonly involved in cell signaling pathways?

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