MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Under central cells of blastoderm, a pool of fluid develops giving area a translucent appearance called |
| A. | area opaca |
| B. | area pellucida |
| C. | area translucent |
| D. | clear area |
| Answer» C. area translucent | |
| 2. |
Lower layer of cells formed after splitting of blastoderm is called |
| A. | epiblast |
| B. | hypoblast |
| C. | area pellucida |
| D. | area opaca |
| Answer» C. area pellucida | |
| 3. |
The purpose of the vasomotor nerve is to control the |
| A. | arterioles carrying blood to capillaries |
| B. | proximal convoluted tubule |
| C. | distal convoluted tubule |
| D. | collecting tubule |
| Answer» B. proximal convoluted tubule | |
| 4. |
During gastrulation blastoderm splits into |
| A. | two layers |
| B. | one layer |
| C. | three layers |
| D. | four layers |
| Answer» B. one layer | |
| 5. |
Discoidal cap of cells above blastocoele is called |
| A. | blastoderm |
| B. | blastocoele |
| C. | area opaca |
| D. | area pellucida |
| Answer» B. blastocoele | |
| 6. |
Specialized hairs includes all but |
| A. | eyelashes |
| B. | head hair |
| C. | whiskers |
| D. | pines |
| Answer» C. whiskers | |
| 7. |
Eye is nourished through |
| A. | sclerotic coat |
| B. | choroid coat |
| C. | iris |
| D. | pupil |
| Answer» C. iris | |
| 8. |
Tactile means the ability to |
| A. | touch |
| B. | taste |
| C. | tackle |
| D. | treat |
| Answer» B. taste | |
| 9. |
From the sweat glands, the sweat is carried to sweat pore through a |
| A. | vein |
| B. | vessel |
| C. | duct |
| D. | capillary |
| Answer» D. capillary | |
| 10. |
In mammals, bones and cartilage result in |
| A. | exoskeleton |
| B. | internal skeleton |
| C. | epidermis |
| D. | endodermis |
| Answer» C. epidermis | |
| 11. |
If lobster loses its pincer claw |
| A. | a new claw regenerates |
| B. | it becomes impaired |
| C. | it dies |
| D. | it vanishes |
| Answer» B. it becomes impaired | |
| 12. |
Muscle cells are produced by |
| A. | clear cytoplasm |
| B. | yellow cytoplasm |
| C. | gray vegetal cytoplasm |
| D. | brown cytoplasm |
| Answer» C. gray vegetal cytoplasm | |
| 13. |
Apical meristems are found at tips of |
| A. | root |
| B. | shoot |
| C. | both root and shoot |
| D. | cotyledon |
| Answer» D. cotyledon | |
| 14. |
Production of leaves and flowers is due to |
| A. | lateral meristems |
| B. | intercalary meristems |
| C. | apical meristems |
| D. | cortex |
| Answer» C. apical meristems | |
| 15. |
Synthesis of cytoplasm and cell wall material takes place during |
| A. | maturation |
| B. | cell division |
| C. | elongation |
| D. | differentiation |
| Answer» C. elongation | |
| 16. |
Acetabularia is a kind of |
| A. | fungi |
| B. | protist |
| C. | multicellular alga |
| D. | unicellular alga |
| Answer» E. | |
| 17. |
Phenomena that some cells evoke a specific developmental response in other cells is |
| A. | embryonic influence |
| B. | embryonic induction |
| C. | embryonic stimulation |
| D. | embryonic dominance |
| Answer» C. embryonic stimulation | |
| 18. |
An internal factor that influences growth in plants is |
| A. | hormones |
| B. | water |
| C. | nutrition |
| D. | all of the above |
| Answer» E. | |
| 19. |
Notochord is one of few prominent structural features in chick embryo of about |
| A. | 15 hours |
| B. | 18 hours |
| C. | 13 hours |
| D. | 10 hours |
| Answer» C. 13 hours | |
| 20. |
Cells responsible for increase in number of cells at tips of roots and stem are |
| A. | intercalary meristem |
| B. | lateral meristem |
| C. | apical meristems |
| D. | apex |
| Answer» D. apex | |
| 21. |
From two cell of salamander zygote, one that kept dividing had |
| A. | mitochondria |
| B. | nucleus |
| C. | ribosomes |
| D. | golgi apparatus |
| Answer» C. ribosomes | |
| 22. |
Recent studies prove that development depends on position of |
| A. | nucleus |
| B. | white matter |
| C. | gray crescent |
| D. | yolk |
| Answer» D. yolk | |
| 23. |
Study of growth and differentiation undergone by an animal from zygote into a highly complex individual is called |
| A. | histology |
| B. | zoology |
| C. | embryology |
| D. | physiology |
| Answer» D. physiology | |
| 24. |
All are the mechanisms to prevent heat loss in small mammals, but, |
| A. | low metabolic rate |
| B. | high food intake |
| C. | avoid temperature extremes |
| D. | living in burrows |
| Answer» B. high food intake | |
| 25. |
Degeneration of cartilage gives rise to |
| A. | arthritis |
| B. | epilepsy |
| C. | parkinson's disease |
| D. | goiter |
| Answer» B. epilepsy | |
| 26. |
All are true about proteins, but |
| A. | essential to replace worn-out protoplasm |
| B. | helps in hydrolysis of enzymes |
| C. | a source of energy |
| D. | help to develop antibodies to combat diseases |
| Answer» C. a source of energy | |
| 27. |
Nucleus in acetabularia lies in the |
| A. | stalk |
| B. | cap |
| C. | base |
| D. | gills |
| Answer» D. gills | |
| 28. |
Rounded closely packed mass of blastomeres is called |
| A. | gastrula |
| B. | morula |
| C. | neurula |
| D. | hypoblast |
| Answer» C. neurula | |
| 29. |
Hair are produced by |
| A. | epidermis |
| B. | dermis |
| C. | malpighian layer |
| D. | granular layer |
| Answer» B. dermis | |
| 30. |
Runny nose and crying may be the outcomes of |
| A. | hay fever |
| B. | downs syndrome |
| C. | excess tears |
| D. | stress or depression |
| Answer» D. stress or depression | |
| 31. |
Internal reflection of light is prevented through the |
| A. | sclerotic coat |
| B. | choroid coat |
| C. | iris |
| D. | pupil |
| Answer» C. iris | |
| 32. |
Number of stamens fused to form a trough is |
| A. | 7 |
| B. | 8 |
| C. | 9 |
| D. | 10 |
| Answer» D. 10 | |
| 33. |
Cornified layer is thickest in |
| A. | scalp of head |
| B. | soles of feet only |
| C. | palm of hands only |
| D. | soles of feet and palm of hands |
| Answer» E. | |
| 34. |
Growth of bacteria in hair follicle is prevented through |
| A. | Chyle |
| B. | Chyme |
| C. | sebum |
| D. | cillia |
| Answer» D. cillia | |
| 35. |
Rectus muscles are used to |
| A. | hold the eye in the depression in the skull |
| B. | help the eye rotate without moving the head |
| C. | help the eye blink |
| D. | to hold the eye in space |
| Answer» C. help the eye blink | |
| 36. |
Innermost layer of eyeball is |
| A. | iris |
| B. | retina |
| C. | ciliary body |
| D. | pupil |
| Answer» C. ciliary body | |
| 37. |
Acetabularia mediterranea has a cap of |
| A. | regular shape |
| B. | circular shape |
| C. | triangular shape |
| D. | cone shape |
| Answer» B. circular shape | |
| 38. |
In plants, growth and development involve |
| A. | cell division |
| B. | elongation |
| C. | differentiation |
| D. | all of the above |
| Answer» E. | |
| 39. |
Growth of multicellular plant is divided into |
| A. | one phase |
| B. | two phases |
| C. | three phases |
| D. | four phases |
| Answer» E. | |
| 40. |
Mesoderm cells migrate medially and caudally from both sides and create a mid line thickening called |
| A. | primitive groove |
| B. | primitive ridge |
| C. | primitive pit |
| D. | primitive streak |
| Answer» E. | |
| 41. |
Somites are compact cell masses lying immediately lateral to |
| A. | neural folds |
| B. | neural plate |
| C. | neural groove |
| D. | yolk |
| Answer» B. neural plate | |
| 42. |
Cell elongation is retarded by |
| A. | ultraviolet rays |
| B. | blue light |
| C. | red light |
| D. | Both a and b |
| Answer» E. | |
| 43. |
Apical meristems play an important role in |
| A. | secondary growth |
| B. | lateral growth |
| C. | primary growth |
| D. | pre-primary growth |
| Answer» D. pre-primary growth | |
| 44. |
Marginal area of blastoderm in which cells remain undetached from yolk is called |
| A. | primitive groove |
| B. | zone of junction |
| C. | area pellucida |
| D. | area opaca |
| Answer» C. area pellucida | |
| 45. |
Spemann performed experiments to understand concept of |
| A. | growth |
| B. | development |
| C. | differentiation |
| D. | selection |
| Answer» D. selection | |
| 46. |
In chick shell of egg is secreted as egg passes through the |
| A. | uterus |
| B. | ureter |
| C. | oviduct |
| D. | ovary |
| Answer» B. ureter | |
| 47. |
In next half century, number of people over age 80 will rise from 5 million to |
| A. | 10 million |
| B. | 12 million |
| C. | 14 million |
| D. | 16 million |
| Answer» C. 14 million | |
| 48. |
From hensen's node dorsal mesoderm is formed and is organized into |
| A. | mollicutes |
| B. | axons |
| C. | somites |
| D. | dendrites |
| Answer» D. dendrites | |
| 49. |
Gray vegetal cytoplasm gives rise to |
| A. | brain |
| B. | gut |
| C. | liver |
| D. | kidney |
| Answer» C. liver | |
| 50. |
Cytoplasm plays role in |
| A. | selection of genes |
| B. | repairing of genes |
| C. | aggregation of denes |
| D. | recombination of genes |
| Answer» B. repairing of genes | |