MCQOPTIONS
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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.
| 4851. |
First man made cereal (i.e., Triticale) is |
| A. | Octaploid |
| B. | Hexaploid |
| C. | Both a and b |
| D. | Diploid |
| Answer» D. Diploid | |
| 4852. |
Hexaploid wheat is [BVP 2001; Haryana PMT 2005] |
| A. | Triticum monococcum |
| B. | T. durum |
| C. | T. turgidum |
| D. | T. aestivum |
| Answer» E. | |
| 4853. |
Jojoba is [AMU 1996] |
| A. | Crotalaria |
| B. | Simmondsia chinensis |
| C. | Parthenium |
| D. | Leucaena |
| Answer» C. Parthenium | |
| 4854. |
The liquid wax is obtained from [AMU 1987] |
| A. | Sperm whale oil (Spermaceti) |
| B. | Jojoba (Simmondsia Chinensis) |
| C. | Both a and b |
| D. | Blue whale oil |
| Answer» D. Blue whale oil | |
| 4855. |
A new crop, which is the source of high performance lubricants is |
| A. | Simmondsia chinensis |
| B. | Parthenium argentatum |
| C. | Psophocarpus tetragonolobus |
| D. | Leucaena leucocephala |
| Answer» B. Parthenium argentatum | |
| 4856. |
Development of structure and shape of an organism is [CBSE PMT 1993] |
| A. | Morphology |
| B. | Multiplication |
| C. | Morphogenesis |
| D. | Budding |
| Answer» D. Budding | |
| 4857. |
The development of eye in vertebrate embryology is studied under [CMC Vellore 1978] |
| A. | Notogenesis |
| B. | Neurogenesis |
| C. | Mesogenesis |
| D. | Organogenesis |
| Answer» E. | |
| 4858. |
The central nervous system develops as a result of [BHU 1977] |
| A. | Metamorphosis |
| B. | Gastrulation |
| C. | Neurulation |
| D. | Invagination |
| Answer» D. Invagination | |
| 4859. |
Nervous system in vertebrates develops from [CPMT 1989, 95] |
| A. | Endoderm |
| B. | Ectoderm |
| C. | Mesoderm |
| D. | Endoderm and mesoderm both |
| Answer» C. Mesoderm | |
| 4860. |
Which one of the following parts serves the function of primary organizer in frog [CPMT 2005] |
| A. | Dorsal tip of gastrula |
| B. | Grey crescent area of frog |
| C. | Chorda-mesoderm of gastrula |
| D. | Any of the above |
| Answer» D. Any of the above | |
| 4861. |
Which of the following develops from ectoderm [DPMT 1986, 97] |
| A. | Spinal cord and brain |
| B. | Liver and heart |
| C. | Notochord and vertebral column |
| D. | Eye and skin |
| Answer» B. Liver and heart | |
| 4862. |
The origin of kidney and ureter in Rana tigrina is [CPMT 2004] |
| A. | All mesodermal |
| B. | All endodermal |
| C. | Ectodermal and mesodermal |
| D. | Mesodermal and endodermal |
| Answer» B. All endodermal | |
| 4863. |
Proctodaeum in rabbit is [RPMT 2001] |
| A. | A part of large intestine lined by ectoderm |
| B. | A part of large intestine lined by endoderm |
| C. | A part of large intestine lined by mesoderm |
| D. | Embryonic intestine |
| Answer» B. A part of large intestine lined by endoderm | |
| 4864. |
Eye is developed from [CPMT 1998; MH-CET 2002] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | Ecto-endoderm |
| Answer» B. Mesoderm | |
| 4865. |
From which layer of the embryo do the liver and pancreas develop [MP PMT 1998] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | Both [a] and [c] |
| Answer» D. Both [a] and [c] | |
| 4866. |
In Pheretima mouth develops from which of the following [RPMT 2000] |
| A. | Mesoderm |
| B. | Ectoderm |
| C. | Blastopore |
| D. | Endoderm |
| Answer» D. Endoderm | |
| 4867. |
Which cavity arises by the invagination of endoderm and mesoderm [MP PMT 1996] |
| A. | Coelenteron |
| B. | Archenteron |
| C. | Pseudocoel |
| D. | Coelom |
| Answer» C. Pseudocoel | |
| 4868. |
True coelom is a space between the body wall and alimentary canal. It is lined by [CBSE PMT 1996] |
| A. | Mesoderm on one side and ectoderm on the other side |
| B. | Endoderm on one side and ectoderm on the other side |
| C. | Mesoderm on both the sides |
| D. | Ectoderm on both the sides |
| Answer» D. Ectoderm on both the sides | |
| 4869. |
The concept that organiser is essential for embryonic development was given by or For the ?Theory of organiser?, Nobel prize was given to [CBSE PMT 1990; AFMC 1993] |
| A. | J. Axelrod |
| B. | C. Landsteiner |
| C. | H. Spemann |
| D. | I.P. Pavlov |
| Answer» D. I.P. Pavlov | |
| 4870. |
In vertebrates the nails are formed from |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | Ecto-mesoderm |
| Answer» B. Mesoderm | |
| 4871. |
Neural canal develops from [Bihar MDAT 1995] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | All the above |
| E. | None of the above |
| Answer» B. Mesoderm | |
| 4872. |
When mouth develops from blastopore, the organism is called [AFMC 1995] |
| A. | Deutrostomia |
| B. | Protostomia |
| C. | Blastostomia |
| D. | None of these |
| Answer» C. Blastostomia | |
| 4873. |
Match the items ABCD of table 'A' with that of items in table 'B' then the correct pairing sequence of ABCD will be 'A' 'B' A. Cleavage 1. Formation of 3 germ layers B. Gastrulation 2. Formation of embryo spinal cord C. Neurulation 3. Results in formation of skeleton and muscles from mesoderm D. Organogenesis 4. Pattern depends on the amount and distribution of yolk |
| A. | 4, 1, 2, 3 |
| B. | 2, 3, 1, 4 |
| C. | 4, 2, 3, 1 |
| D. | 3, 1, 2, 4 |
| Answer» B. 2, 3, 1, 4 | |
| 4874. |
In the embryonic development of chordate the animal pole forms one of the following of the adult [CPMT 1983] |
| A. | Dorsal side |
| B. | Ventral side |
| C. | Head |
| D. | Tail |
| Answer» B. Ventral side | |
| 4875. |
Which of the following is correct statement [CBSE PMT 1990] |
| A. | In blastulation major presumptive and organ forming areas are segregated into definite points of the blastoderm |
| B. | Blastulation establishes the three germinal layers |
| C. | Blastulation of frog is known as discoblastula |
| D. | Fluid filled space in blastula is known as archenteron |
| Answer» B. Blastulation establishes the three germinal layers | |
| 4876. |
Internal ear develops from [CPMT 1973] |
| A. | Ectoderm |
| B. | Endoderm |
| C. | Mesoderm |
| D. | None of the above |
| Answer» B. Endoderm | |
| 4877. |
Longest cell in human body may be [BHU 1983; CPMT 1971, 73, 86, 89; MP PMT 1998] |
| A. | Nerve cell |
| B. | Leg muscle cell |
| C. | Bone cell |
| D. | Heart muscle cell |
| Answer» B. Leg muscle cell | |
| 4878. |
Nerve cell originated from embryonic [ST 1975; CPMT 1982, 89; CBSE PMT 1989] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Both of these |
| D. | Endoderm |
| Answer» B. Mesoderm | |
| 4879. |
In the diagram of multipolar myelinated neuron given below, different parts have been indicated by alphabetes; choose the answers in which these alphabetes have been correctly matched with the parts which they indicate [KCET 1999] |
| A. | A = Cell body, B = Nissl bodies, C = Nucleus, D = Dendrites, E = Naked portion of axon, F = Myelin sheath, G = Node of Ranvier |
| B. | A = Cell body, B = Nissl bodies, C = Naked portion of axon, D = Dendrites, E = Nucleus, F = Myelin sheath, G = Node of Ranvier |
| C. | A = Cell body, B = Nissl bodies, C = Naked portion of axon, D = Nucleus, E = Dendrites, F = Myelin sheath, G = Node of Ranvier |
| D. | A = Cell body, B = Nissl bodies, C = Dendrites, D = Nucleus, E = Naked portion of axon, F = Myelin sheath, G = Node of Ranvier |
| Answer» E. | |
| 4880. |
Non-excitable cells, found among the neurons are called [CPMT 2003] |
| A. | Dendrite |
| B. | Axon |
| C. | Schwann?s cells |
| D. | Nissl?s body |
| Answer» D. Nissl?s body | |
| 4881. |
Schwan cell is found around [BHU 2003] |
| A. | Axon |
| B. | Cyton |
| C. | Dendrite |
| D. | Dendron |
| Answer» B. Cyton | |
| 4882. |
Largest number of cell bodies of neuron in our body are found in [CPMT 1972] |
| A. | Retina |
| B. | Spinal cord |
| C. | Brain |
| D. | Tongue |
| Answer» D. Tongue | |
| 4883. |
Nissl's granules are absent in [CPMT 2001] |
| A. | Axon |
| B. | Cyton |
| C. | Dendrone |
| D. | Schwann cells |
| Answer» B. Cyton | |
| 4884. |
Which one of the following is not essentially a part of nervous system [CPMT 1998] |
| A. | Cyton |
| B. | Axon |
| C. | Myelinated |
| D. | Intermedin |
| Answer» E. | |
| 4885. |
Which of the following is regarded as a unit of nervous tissue [CBSE PMT 1999] |
| A. | Axons |
| B. | Dendrites |
| C. | Neurons |
| D. | Myelin sheath |
| Answer» D. Myelin sheath | |
| 4886. |
The brain develops from [MP PMT 1997] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | Meso-endoderm |
| Answer» B. Mesoderm | |
| 4887. |
Efferent process of the neuron is called |
| A. | Synapse |
| B. | Dendrite |
| C. | Boutons terminaux |
| D. | Axon |
| Answer» E. | |
| 4888. |
Which type of neurons are found in the retina |
| A. | Unipolar |
| B. | Pseudo-unipolar |
| C. | Multipolar |
| D. | Bipolar |
| Answer» E. | |
| 4889. |
A nerve impulse will travel through a nerve fibre only if the membrane suddenly becomes more permeable to |
| A. | Chloride ions |
| B. | Potassium ions |
| C. | Sodium ions |
| D. | Calcium ions |
| Answer» D. Calcium ions | |
| 4890. |
Neurons divide |
| A. | Amitotically |
| B. | Mitotically |
| C. | Meotically |
| D. | None of these |
| Answer» E. | |
| 4891. |
The function of nervous tissue is [CPMT 1975] |
| A. | Irritability |
| B. | Sensibility |
| C. | Responsiveness |
| D. | Contraction |
| Answer» B. Sensibility | |
| 4892. |
The neurilemma surrounds the |
| A. | Axis cylinder |
| B. | Cell body |
| C. | Myelin sheath |
| D. | Endoneurium |
| Answer» D. Endoneurium | |
| 4893. |
The axon contains in its axis cylinder a fibrilar component of \[90\,\overset{o}{\mathop{\text{A}}}\,\] thick called |
| A. | Axial fibrils |
| B. | Myofibrils |
| C. | Neurofibrils |
| D. | Myelinfibrils |
| Answer» D. Myelinfibrils | |
| 4894. |
Which of the following structures, are the speciality of nerve cells |
| A. | Nucleus and cytoplasm |
| B. | Axon and dendrites |
| C. | Vacuoles and fibres |
| D. | Synapse and ganglia |
| Answer» C. Vacuoles and fibres | |
| 4895. |
Node of Ranvier is found in [MP PMT 2000] |
| A. | Right auricle |
| B. | Muscle bundles |
| C. | Dendrite |
| D. | Axon |
| Answer» E. | |
| 4896. |
Axon hillock is |
| A. | Group of axons |
| B. | A swelling of axon |
| C. | The part of cyton from where the axon arises |
| D. | Plasma membrane of axon |
| Answer» D. Plasma membrane of axon | |
| 4897. |
Function of Neuroglial cells is |
| A. | Acts as packing cells |
| B. | Provide nutrition to the neurons |
| C. | Help in memory processes as these store informations in the form of an RNA code |
| D. | All the above |
| Answer» B. Provide nutrition to the neurons | |
| 4898. |
Velocity of impulse is greater in |
| A. | Thin nerve |
| B. | Thick nerve |
| C. | Does not depend on thickness |
| D. | Afferent nerve |
| Answer» C. Does not depend on thickness | |
| 4899. |
Neurons are classified on the basis of |
| A. | Number of nucleus present |
| B. | Number of processes arising from the cell body |
| C. | Number of dendrites present |
| D. | Number of axons present |
| Answer» C. Number of dendrites present | |
| 4900. |
The heart continuous beating normally even when its nervous supply is completely obliterated because it is |
| A. | Myogenic |
| B. | Neurogenic |
| C. | Natural process |
| D. | None of the above |
| Answer» B. Neurogenic | |