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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 4901. |
Schwann cells and Node of Ranvier are found in [CPMT 1976; DPMT 1993; BHU 2003] |
| A. | Nervous tissue |
| B. | Osteoblast |
| C. | Chondrioblast |
| D. | Gland cells |
| Answer» B. Osteoblast | |
| 4902. |
Cell bodies or cyton is found in |
| A. | Brain |
| B. | Spinal cord |
| C. | Brain and ganglia |
| D. | Brain, spinal cord and ganglia |
| Answer» E. | |
| 4903. |
The tissue having similar properties as of protoplasm is |
| A. | Epithelial tissue |
| B. | Connective tissue |
| C. | Nervous tissue |
| D. | Muscular tissue |
| Answer» D. Muscular tissue | |
| 4904. |
Nissl's granules are found in cyton of nerve cells. These have affinity for basic dyes. The granules are made up of [BHU 1988; CBSE PMT 2003] |
| A. | Mitochondria |
| B. | Cell metabolites |
| C. | Fat granules |
| D. | Ribosomes |
| Answer» E. | |
| 4905. |
Which of the following tissues in mammals show the least capacity for regeneration [CPMT 1981, 90, 95,97] |
| A. | Epithelial tissue of the skin |
| B. | Endothelium of blood vessels |
| C. | Skeletal tissue of long bones |
| D. | Nervous tissue of brain |
| Answer» E. | |
| 4906. |
The afferent process of neuron is known as [DPMT 1985] |
| A. | Axon |
| B. | Dendrite |
| C. | Cyton |
| D. | Neurofibrillae |
| Answer» C. Cyton | |
| 4907. |
Nissl's granules are characteristically found in [CPMT 1977, 81, 88; BHU 1985; AFMC 1985; MP PMT 1992, 97] |
| A. | Nephrons |
| B. | Neurons |
| C. | Cytons |
| D. | Dendrites |
| Answer» D. Dendrites | |
| 4908. |
Some cells of our body can be over a foot long. These are [CPMT 1973] |
| A. | Nerve cells |
| B. | Muscle cells |
| C. | Bone cells |
| D. | Gland cells |
| Answer» B. Muscle cells | |
| 4909. |
Synapses store [BHU 1985] |
| A. | Stimulating chemicals |
| B. | Inhibitory chemicals |
| C. | Conducting chemicals |
| D. | All of these |
| Answer» E. | |
| 4910. |
The junction between Schwann cells is known as [MP PMT 1992] |
| A. | Plasmalemma |
| B. | Node of Ranvier |
| C. | Dendrons |
| D. | Synapse |
| Answer» C. Dendrons | |
| 4911. |
Neuroglia cells differ from neurons in having [CMC Vellore 1993] |
| A. | No Nissl's granules |
| B. | No radiating processes |
| C. | No cyton |
| D. | No nucleus |
| Answer» B. No radiating processes | |
| 4912. |
Myelin sheath is a layer covering [CMC Vellore 1993] |
| A. | A nerve fibre in an insect |
| B. | A chick embryo |
| C. | A muscle fibre in a vertebrate |
| D. | A nerve fibre in a vertebrate |
| Answer» E. | |
| 4913. |
To start conduction of impulse, the value of action potential must not be |
| A. | Less than threshold value |
| B. | More than threshold value |
| C. | Equal to threshold value |
| D. | All of the above |
| Answer» B. More than threshold value | |
| 4914. |
The function of repairing in nervous tissue is done by |
| A. | Glial cells |
| B. | Nerve cells |
| C. | Cytons |
| D. | Only axons |
| Answer» B. Nerve cells | |
| 4915. |
Neurons with long axons are called |
| A. | Golgi type I |
| B. | Golgi type II |
| C. | Golgi type III |
| D. | Golgi type IV |
| Answer» B. Golgi type II | |
| 4916. |
The neurons arise from the embryonic cell is called |
| A. | Neuroblast |
| B. | Cytoblast |
| C. | Dendrocyte |
| D. | All of the above |
| Answer» B. Cytoblast | |
| 4917. |
Most of the neurons of our body are [AFMC 1994] |
| A. | Unipolar |
| B. | Bipolar |
| C. | Pseudounipolar |
| D. | Multipolar |
| Answer» E. | |
| 4918. |
The scientist who cut the tail of mouse in many generations but found that it is not inherited [CPMT 1995] |
| A. | Darwin |
| B. | Bateson |
| C. | Lamarck |
| D. | Weismann |
| Answer» E. | |
| 4919. |
The concept of inheritance of acquired characters was developed by [Orissa JEE 1994; MP PMT 1995] |
| A. | Aristotle |
| B. | August Weismann |
| C. | Charles Darwin |
| D. | Jean Baptiste de Lamarck |
| Answer» E. | |
| 4920. |
"Pangenesis hypothesis" was propounded by [MP PMT 2001] |
| A. | Galton |
| B. | Wagner |
| C. | Darwin |
| D. | Weismann |
| Answer» D. Weismann | |
| 4921. |
Use and disuse theory was put forward by [Kerala PMT 1997] |
| A. | Lamarck |
| B. | Darwin |
| C. | Huxley |
| D. | Wallace |
| Answer» B. Darwin | |
| 4922. |
'The law of limiting factor' was proposed by [CBSE PMT 1996; Manipal 2001] |
| A. | Blackman |
| B. | Leibig |
| C. | Hatch and Slack |
| D. | Arnol |
| Answer» B. Leibig | |
| 4923. |
10% law of energy transfer in food chain was given by [CBSE PMT 1996] |
| A. | Tansley |
| B. | Stanley |
| C. | Lindeman |
| D. | Weismann |
| Answer» D. Weismann | |
| 4924. |
The term 'biocoenosis' is coined by [KCET 2001] |
| A. | Earnst Haeckel |
| B. | E.P. Odum |
| C. | Charles Darwin |
| D. | Karl Mobius |
| Answer» E. | |
| 4925. |
The term 'ecosystem' was proposed by [EAMCET 1996; MP PMT 2001] |
| A. | Goli |
| B. | Odum |
| C. | Tansley |
| D. | Whittaker |
| Answer» D. Whittaker | |
| 4926. |
Who appears to have first used the term 'ecology' in 1886 [BHU 2001] |
| A. | F. Clement |
| B. | E. Haeckel |
| C. | E.J. Kormondy |
| D. | I.G.S. Hilaire |
| Answer» C. E.J. Kormondy | |
| 4927. |
Recently cloned species is [CBSE PMT 2000] |
| A. | Dolly ? goat |
| B. | Molly ? sheep |
| C. | Dolly ? sheep |
| D. | None of these |
| Answer» D. None of these | |
| 4928. |
The first mammal clone "Dolly" was created by [Kerala PMT 2002] |
| A. | Ian Wilmut |
| B. | T.H. Morgan |
| C. | Robert Briggs |
| D. | Thomas King |
| Answer» B. T.H. Morgan | |
| 4929. |
Study of relationship between environment and plants animals or human is [KCET 1993; RPMT 1996] |
| A. | Ecology |
| B. | Ethology |
| C. | Mycology |
| D. | Dermatology |
| Answer» B. Ethology | |
| 4930. |
Who was awarded Nobel Prize in 1959 for in vitro synthesis of polyribonucleotide [RPMT 2002] |
| A. | Tatum |
| B. | Ochoa |
| C. | Kornberg |
| D. | Khorana |
| Answer» C. Kornberg | |
| 4931. |
The enzyme DNA polymerase was discovered by [Kerala PMT 2003] |
| A. | Okazaki |
| B. | Kornberg |
| C. | Watson and Crick |
| D. | Stahl and Meselson |
| E. | (e) Jacob and Monod |
| Answer» C. Watson and Crick | |
| 4932. |
Double helical model for DNA molecule was proposed by [BCECE 1996; EAMCET 1996] |
| A. | Watson and Crick |
| B. | Knoll and Ruska |
| C. | Beadle and Tatum |
| D. | Feulgen and Rossenbeck |
| Answer» B. Knoll and Ruska | |
| 4933. |
The chemical nature of gene was discovered by |
| A. | Martha Chase |
| B. | Oswald Avery |
| C. | Alfred Hershey |
| D. | Friedrich Miescher |
| Answer» C. Alfred Hershey | |
| 4934. |
Mechanism of bacterial transformation was [MP PMT 1998] |
| A. | Beadle and Tatum |
| B. | Avery et al. |
| C. | Har Govind Khorana |
| D. | Joshua Lederberg |
| Answer» C. Har Govind Khorana | |
| 4935. |
Transformation experiments were done by [Kerala PMT 2000] |
| A. | Zinder |
| B. | Beadle |
| C. | Griffith |
| D. | Lederberg |
| Answer» D. Lederberg | |
| 4936. |
Which is the wrong combination [AMU 2000] |
| A. | Landsteiner ? Blood group |
| B. | Chargaff and Davidson ? A = T; G = C |
| C. | Watson and Crick ? DNA structure |
| D. | None of the above |
| Answer» E. | |
| 4937. |
The study of trends in human population growth and the prediction of future development is known a [Kerala PMT 2000] |
| A. | Sociology |
| B. | Geography |
| C. | Demography |
| D. | Anthropology |
| Answer» D. Anthropology | |
| 4938. |
Who studied blood groups in man [CPMT 1989] |
| A. | Landsteiner |
| B. | Francis Galton |
| C. | Stanley Miller |
| D. | Gregor Mendel |
| Answer» B. Francis Galton | |
| 4939. |
Barbara McClintock is famous for her work on [Haryana PMT 2001] |
| A. | Rice |
| B. | Wheat |
| C. | Maize |
| D. | Sugarcane |
| Answer» D. Sugarcane | |
| 4940. |
'One gene one enzyme hyopthesis' was given by [BHU 1995; MP PMT 1996; AMU 2000; DPMT 2001] |
| A. | Watson and Kornberg |
| B. | Beadle and Tatum |
| C. | Khorana and Nirenberg |
| D. | Jacob and Monod |
| Answer» C. Khorana and Nirenberg | |
| 4941. |
"Father of human genetics" is [Haryana PMT 2001] |
| A. | Garrod |
| B. | Cuvier |
| C. | Bateson |
| D. | Mendel |
| Answer» B. Cuvier | |
| 4942. |
Name the scientist who was awarded the Nobel Prize for his genetic studies on the linear arrangement of genes on the chromosomes in the fruitfly, Drosophila melanogaster [Kerala PMT 2001] |
| A. | C.F. Wolff |
| B. | T.A. Knight |
| C. | J. Swammerdam |
| D. | T. H. Morgan |
| Answer» E. | |
| 4943. |
Linkage was first observed by [MP PMT 2001] |
| A. | Walter Sutton |
| B. | Gregor Mendel |
| C. | William Bateson |
| D. | Thomas Hunt Morgan |
| Answer» D. Thomas Hunt Morgan | |
| 4944. |
Determination of sex linked genes was first made by [Wardha 2001] |
| A. | Mendel |
| B. | Morgan |
| C. | Bridges |
| D. | Sturtevant |
| Answer» C. Bridges | |
| 4945. |
The term 'Genetics' was introduced by [CPMT 1994, 97] |
| A. | William Harvey |
| B. | Johannsen |
| C. | William Bateson |
| D. | Hugo de Vries |
| Answer» D. Hugo de Vries | |
| 4946. |
Laws of inheritance were given by [BCECE 1996] |
| A. | Lamarck |
| B. | Khorana |
| C. | Mendel |
| D. | Darwin |
| Answer» D. Darwin | |
| 4947. |
Branch connected with study of cell structure is [EAMCET 1996] |
| A. | Cytology |
| B. | Physiology |
| C. | Geology |
| D. | Histology |
| Answer» B. Physiology | |
| 4948. |
The first great geneticist was [CBSE PMT 1991] |
| A. | Miller |
| B. | Mendel |
| C. | Galton |
| D. | Morgan |
| Answer» C. Galton | |
| 4949. |
Ribosomes were discovered in animal cells by [Kerala PMT 1997] |
| A. | Palade |
| B. | de Duve |
| C. | Kollicker |
| D. | Robinson and Brown |
| Answer» B. de Duve | |
| 4950. |
Who has discovered lysosomes [CPMT 1996] |
| A. | de Duve |
| B. | Robert Hooke |
| C. | Rene Dutrochet |
| D. | Robert Brown |
| Answer» B. Robert Hooke | |