MCQOPTIONS
Saved Bookmarks
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. |
In human beings, the respiratory pigment is |
| A. | Chlorophyll |
| B. | Melanin |
| C. | Rhodopsin |
| D. | Haemoglobin |
| Answer» E. | |
| 2. |
In fertilisation of a flower, the fertilised central cell will develop into __________ ._x005F_x000D_ |
| A. | zygote |
| B. | embryo |
| C. | endosperm |
| D. | sperm |
| Answer» D. sperm | |
| 3. |
In how many parts is the human brain divided? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 4. |
In general enzymes are what kinds of molecules? |
| A. | Lipids |
| B. | Carbohydrates |
| C. | Proteins |
| D. | Nucleic acids |
| Answer» D. Nucleic acids | |
| 5. |
In females, the uterus is __________. |
| A. | Single |
| B. | Double |
| C. | Triple |
| D. | Four |
| Answer» B. Double | |
| 6. |
In exo-biology we study about ________ |
| A. | External structure of living beings |
| B. | Life present on the earth |
| C. | Life present in the other layer of earth atmosphere |
| D. | Life found in space and on other satellite |
| Answer» E. | |
| 7. |
In females, the ovaries are located ______ on each side of the lower abdomen. |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» B. Two | |
| 8. |
In electro - magnetic radiation, which of the following has greater wave - length than visible light |
| A. | Ultra -violet rays |
| B. | Infra - red rays |
| C. | Cosmic rays |
| D. | x-rays |
| Answer» C. Cosmic rays | |
| 9. |
In each testes in a male reproductive system, there are ________ compartments called testicular lobules. |
| A. | 150 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| Answer» D. 300 | |
| 10. |
In diseases like Polio, the cells that get destroyed by virus, are |
| A. | Monocytes |
| B. | Erythrocytes |
| C. | Motor neurons |
| D. | Sensory neurons |
| Answer» D. Sensory neurons | |
| 11. |
In ............. cells are loosely packed so that large intercellular spaces are found._x005F_x000D_ |
| A. | Parenchyma |
| B. | Tracheids |
| C. | Sclerenchyma |
| D. | Collenchyma |
| Answer» B. Tracheids | |
| 12. |
In case of a heart attack, a hormone is injected as an emergency measure, Which one is it? |
| A. | Thyroxine |
| B. | Adrenaline |
| C. | Heparin |
| D. | Insulin |
| Answer» C. Heparin | |
| 13. |
In autotrophic bacteria, where is chlorophyll located? |
| A. | in the nucleoid |
| B. | in the infolded plasma membrane |
| C. | in the ribosomes |
| D. | in chloroplast membranes |
| Answer» C. in the ribosomes | |
| 14. |
In animals like Annelids, Molluscs, organs have associated to form functional systems, each system concerned with a specific physiological function. This pattern is called ________ system level of organization. |
| A. | organ |
| B. | open |
| C. | closed |
| D. | coelom |
| Answer» B. open | |
| 15. |
In Animal Kingdom classification, which of the following is not a Phylum? |
| A. | Mollusca |
| B. | Chordata |
| C. | Coelomates |
| D. | Anneldia |
| Answer» D. Anneldia | |
| 16. |
In Angiosperms, plant embryos in seed have structures called ______._x005F_x000D_ |
| A. | Spore |
| B. | Buds |
| C. | Sprout |
| D. | Cotyledon |
| Answer» E. | |
| 17. |
In a plant, which of the following is converted into seed? |
| A. | ovule |
| B. | ovary |
| C. | style |
| D. | stigma |
| Answer» B. ovary | |
| 18. |
In a Punnett Square with the cross AaBb x Aabb, how many AaBb genotypes would be created? |
| A. | 4 |
| B. | 1 |
| C. | 7 |
| D. | 6 |
| Answer» B. 1 | |
| 19. |
In a nucleosome, the DNA is wrapped around |
| A. | histone octamer |
| B. | helix |
| C. | double helix |
| D. | None of the above |
| Answer» B. helix | |
| 20. |
In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as _________ |
| A. | Dichogamy |
| B. | Herpogamy |
| C. | Haterogamy monogamy |
| D. | None of these |
| Answer» B. Herpogamy | |
| 21. |
Improving muscular strength and endurance slows bone density loss. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 22. |
Impulse conduction is fastest in neurons that are |
| A. | Myelinated |
| B. | Motor |
| C. | Unmyelinated |
| D. | Sensory |
| Answer» B. Motor | |
| 23. |
In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores? |
| A. | 0.084722222222222 |
| B. | 0.04375 |
| C. | 0.12569444444444 |
| D. | 0.16666666666667 |
| Answer» C. 0.12569444444444 | |
| 24. |
Important component that helps in clotting of the blood is called ____. |
| A. | Haemoglobin |
| B. | Platelets |
| C. | Serum |
| D. | Plasma |
| Answer» C. Serum | |
| 25. |
Important objective of biotechnology in agriculture section is _________ |
| A. | % produce best resistant varieties of plant |
| B. | % increase the nitrogen content |
| C. | % decrease the seed number |
| D. | % increase the plant weight |
| Answer» B. % increase the nitrogen content | |
| 26. |
Implantation is the process of |
| A. | the development of a child inside the mother's body |
| B. | attachment of zygote to the lining of a uterus |
| C. | nutrition from mother's blood through placenta |
| D. | developing an embryo and its nourishment |
| Answer» C. nutrition from mother's blood through placenta | |
| 27. |
If waste materials contaminate the source of drinking water, which of the following diseases will spread? |
| A. | Scurvy |
| B. | Typhoid |
| C. | Malaria |
| D. | Anaemia |
| Answer» C. Malaria | |
| 28. |
If the chromosome number is 46 in a human being, how many chromosomes are present in somatic cells of the human being?_x005F_x000D_  _x005F_x000D_ |
| A. | 24 |
| B. | 46 |
| C. | 23 |
| D. | 48 |
| Answer» C. 23 | |
| 29. |
Identify an example of a connective tissue in humans. |
| A. | Fibres |
| B. | Bone |
| C. | Muscles |
| D. | Cell |
| Answer» C. Muscles | |
| 30. |
Identify a type of asexual reproduction which involves reproduction through parts of a plant such as roots, stem and leaves? |
| A. | Budding |
| B. | Vegetative propagation |
| C. | Fragmentation |
| D. | Fission |
| Answer» B. Vegetative propagation | |
| 31. |
Hypokinetic diseases refer to those that are caused by_x005F_x000D_ Â _x005F_x000D_ |
| A. | infections |
| B. | high cholesterol |
| C. | inactivity |
| D. | high blood pressure |
| Answer» D. high blood pressure | |
| 32. |
Hypnosis is sometimes used to treat anxiety disorders. |
| A. | 1 |
| B. | |
| C. | |
| D. | |
| Answer» B. | |
| 33. |
Hypercalcemia can be caused by |
| A. | malignancy |
| B. | hyper-parathyroidism |
| C. | both A & B |
| D. | None of the above |
| Answer» D. None of the above | |
| 34. |
Hydra reproduces by |
| A. | Fragmentation |
| B. | Multiple fission |
| C. | Budding |
| D. | Binary fission |
| Answer» D. Binary fission | |
| 35. |
Hybrid zones provide an opportunity to investigate |
| A. | Reproductive isolation |
| B. | Speciation |
| C. | Both 1 & 2 |
| D. | None |
| Answer» D. None | |
| 36. |
Human nails are made of_x005F_x000D_ |
| A. | Pigment_x005F_x000D_ |
| B. | Elastin_x005F_x000D_ |
| C. | Albumin_x005F_x000D_ |
| D. | Keratin |
| Answer» E. | |
| 37. |
Human Heart is made up of |
| A. | nervous tissue |
| B. | cardiac muscle |
| C. | nonstriated muscle |
| D. | connective tissue |
| Answer» C. nonstriated muscle | |
| 38. |
Human beings' hearing range is _______. |
| A. | 50 to 50,000 Hz |
| B. | 40 to 40,000 Hz |
| C. | 30 to 30,000 Hz |
| D. | 20 to 20,000 Hz |
| Answer» E. | |
| 39. |
Human blood platelets releases ___ which helps in clotting of blood. |
| A. | Prothrombin |
| B. | Fibrin |
| C. | Fructose |
| D. | Sucrose |
| Answer» B. Fibrin | |
| 40. |
How much salt is present in our body? |
| A. | 0.01 |
| B. | 0.02 |
| C. | 0.004 |
| D. | 0.006 |
| Answer» D. 0.006 | |
| 41. |
How many versions of each trait will be there in each child as per the rules for the inheritance of traits? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 42. |
How many pints of blood in the human body? |
| A. | 44414 |
| B. | 44540 |
| C. | 44477 |
| D. | 44382 |
| Answer» C. 44477 | |
| 43. |
How many pairs of ribs are there in human body? |
| A. | 10 |
| B. | 11 |
| C. | 12 |
| D. | 13 |
| Answer» D. 13 | |
| 44. |
How many Nucleotides make up a Codon? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» B. 4 | |
| 45. |
How many Nephrons are in each kidney? |
| A. | 10000 |
| B. | 1,00,000 |
| C. | 1000000 |
| D. | 1000 |
| Answer» D. 1000 | |
| 46. |
How many layers does Human Skin have? |
| A. | 5 |
| B. | 7 |
| C. | 11 |
| D. | 3 |
| Answer» E. | |
| 47. |
How many litres of blood does an adult body have? |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» D. 6 | |
| 48. |
How many facial bones are there? |
| A. | 34 |
| B. | 24 |
| C. | 14 |
| D. | 4 |
| Answer» D. 4 | |
| 49. |
How many daughter cells are produced in mitosis? |
| A. | 2 |
| B. | 4 |
| C. | 8 |
| D. | None |
| Answer» B. 4 | |
| 50. |
How many chromosomes does a human cell contain? |
| A. | 6 |
| B. | 26 |
| C. | 46 |
| D. | 66 |
| Answer» D. 66 | |