MCQOPTIONS
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MCQOPTIONS
This section includes 200 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the walls of seminiferous tubules the cells that secrete seminal fluid are called |
| A. | leydig cells |
| B. | sertoli cells |
| C. | germ cells |
| D. | epithelium cells |
| Answer» C. germ cells | |
| 2. |
The nucleus taken from a somatic cell during cloning is introduced into an |
| A. | sperm cell |
| B. | egg cell |
| C. | zygote |
| D. | gamete |
| Answer» C. zygote | |
| 3. |
The placenta passes out through vagina |
| A. | 10-20 minutes after birth |
| B. | 10-15 minutes after birth |
| C. | 10-30 minutes after birth |
| D. | 10-45 minutes after birth |
| Answer» E. | |
| 4. |
Viviparity is a feature of |
| A. | birds |
| B. | fish |
| C. | mammals |
| D. | reptiles |
| Answer» D. reptiles | |
| 5. |
Decrease of follicle stimulating hormone (FSH) and increase of estrogen causes the pituitary gland to secrete |
| A. | testosterone |
| B. | androgen |
| C. | luteinizing hormone |
| D. | thyroxine |
| Answer» D. thyroxine | |
| 6. |
In humans the ovary releases at one time only |
| A. | two ovum |
| B. | one ovum |
| C. | one polar body |
| D. | one oocyte |
| Answer» C. one polar body | |
| 7. |
Spermatogonia increase in size and differentiate into |
| A. | secondary spermatocytes |
| B. | primary spermatocytes |
| C. | spermatids |
| D. | oocytes |
| Answer» C. spermatids | |
| 8. |
Vernalisation in induced by the hormone |
| A. | veriline |
| B. | vermalin |
| C. | vernalin |
| D. | none of above |
| Answer» D. none of above | |
| 9. |
Henbane (hyoscyamus niger) is a |
| A. | short day plant |
| B. | long day plant |
| C. | neutral plant |
| D. | day neutral plant |
| Answer» C. neutral plant | |
| 10. |
In ovary the second meiotic division occurs in the |
| A. | primary oocyte |
| B. | oogonia |
| C. | secondary oocyte |
| D. | ovum |
| Answer» D. ovum | |
| 11. |
After menupause the female stops producing |
| A. | saliva |
| B. | polar body |
| C. | ova |
| D. | estrogen |
| Answer» D. estrogen | |
| 12. |
The ovum after release is then transferred to the |
| A. | oviduct |
| B. | sperm duct |
| C. | vas deferens |
| D. | epididymis |
| Answer» B. sperm duct | |
| 13. |
The shell of eggs produced by birds and turtles have high concentration of |
| A. | sodium chlroide |
| B. | magnesium |
| C. | calcium carbonate |
| D. | silicon |
| Answer» D. silicon | |
| 14. |
Internal lining of the uterus wall is called |
| A. | endometrium |
| B. | peritonium |
| C. | epithelium |
| D. | none of above |
| Answer» B. peritonium | |
| 15. |
Unfavourable environmental condition a seed may has to face is |
| A. | water scarcity |
| B. | low temperature |
| C. | abundant water supply |
| D. | both a and b |
| Answer» E. | |
| 16. |
Special condition of rest which enables an embryo to survive the long periods of unfavourable conditions is called |
| A. | seed sleep |
| B. | seed inactivity |
| C. | seed dormancy |
| D. | seed rest |
| Answer» D. seed rest | |
| 17. |
The menstrual cycle can be divided into |
| A. | two phases |
| B. | three phases |
| C. | four phases |
| D. | five phases |
| Answer» D. five phases | |
| 18. |
Meiosis is also known as |
| A. | binary fission |
| B. | parthenogenesis |
| C. | reduction division |
| D. | none of the above |
| Answer» D. none of the above | |
| 19. |
For cloning of an animal the nucleus is taken from a |
| A. | somatic cell |
| B. | reproductive cell |
| C. | gamete |
| D. | nerve cell |
| Answer» B. reproductive cell | |
| 20. |
The fertilized ovum for further development is implanted in the |
| A. | cervix |
| B. | placenta |
| C. | uterus |
| D. | none of above |
| Answer» D. none of above | |
| 21. |
Endometrium is made receptive for the implantation of zygote by |
| A. | estrogen |
| B. | progesterone |
| C. | testosterone |
| D. | oxytocin |
| Answer» C. testosterone | |
| 22. |
Oviduct is also called |
| A. | fallopian tube |
| B. | uterine tube |
| C. | urethra |
| D. | both a and b |
| Answer» E. | |
| 23. |
The sperm that queen bee recieves from male |
| A. | fertilizes the egg |
| B. | is kept stored in a pouch |
| C. | gets destroyed by the bacteria |
| D. | none of above |
| Answer» C. gets destroyed by the bacteria | |
| 24. |
Identical gametes are also known as |
| A. | heterogametes |
| B. | isogametes |
| C. | anisogamete |
| D. | none of above |
| Answer» C. anisogamete | |
| 25. |
The primitive form of reproduction not involving any union of gametes is |
| A. | sexual reproduction |
| B. | asexual reproduction |
| C. | syngenesis |
| D. | sexual generation |
| Answer» C. syngenesis | |
| 26. |
Motile male gamete or sperm is also known as |
| A. | ova |
| B. | antherozoid |
| C. | zygote |
| D. | archegonia |
| Answer» C. zygote | |
| 27. |
The key feature in vernalisation is |
| A. | high temperature |
| B. | low temperature |
| C. | low moisture |
| D. | high humidity |
| Answer» C. low moisture | |
| 28. |
The nucleus of the egg cell in cloning is destroyed by |
| A. | violet radiations |
| B. | heat |
| C. | cold |
| D. | water |
| Answer» B. heat | |
| 29. |
All birds in nature are |
| A. | viviparous |
| B. | oviparous |
| C. | ovoviviparous |
| D. | none of above |
| Answer» C. ovoviviparous | |
| 30. |
Follicle stimulating hormone (FSH) stimulates the development of |
| A. | several primary follicles |
| B. | several interstitial cells |
| C. | oocytes |
| D. | ovum |
| Answer» B. several interstitial cells | |
| 31. |
A single parental organism which gives rise to offspring by mitotic cell division is called |
| A. | sexual reproduction |
| B. | asexual reproduction |
| C. | reduction division |
| D. | budding |
| Answer» C. reduction division | |
| 32. |
In higher vertebrates, zygote after fertilization undergoes cell division by mitosis called |
| A. | separation |
| B. | segregation |
| C. | cleavage |
| D. | division |
| Answer» D. division | |
| 33. |
The ovary under the stimulus of follicle stimulating hormone (FSH) produces |
| A. | estrogen |
| B. | testosterone |
| C. | oxytocin |
| D. | thyroxine |
| Answer» B. testosterone | |
| 34. |
The method in which the young one develops within the female body and it receives nourishment from mother's blood is called |
| A. | oviparity |
| B. | ovoviparity |
| C. | viviparity |
| D. | none of above |
| Answer» D. none of above | |
| 35. |
Genetic variability in plants is higher due to |
| A. | self pollination |
| B. | mitosis |
| C. | cross pollination |
| D. | none of above |
| Answer» D. none of above | |
| 36. |
Cucumber, tomato and garden pea are |
| A. | short day plants |
| B. | long day plants |
| C. | day neutral plants |
| D. | neutral plants |
| Answer» D. neutral plants | |
| 37. |
The method in which fertilized egg is retained within the female's body is called |
| A. | oviparity |
| B. | ovoviparity |
| C. | viviparity |
| D. | none of above |
| Answer» C. viviparity | |
| 38. |
Human embryo remains enclosed in a sac called |
| A. | scrotum |
| B. | pericardium |
| C. | placenta |
| D. | amniotic sac |
| Answer» E. | |
| 39. |
Corpus luteum in appearance is |
| A. | greenish in colour |
| B. | brownish in colour |
| C. | yellowish in colour |
| D. | black in colour |
| Answer» D. black in colour | |
| 40. |
Central nervous system, heart, skin and eye bones joints are damaged in |
| A. | gonorrhoa |
| B. | syphilis |
| C. | genital herpes |
| D. | acquired immune deficiency syndrome (AIDS) |
| Answer» C. genital herpes | |
| 41. |
The initial stage of birth is the result of the stimuli from the |
| A. | fetal pituitary |
| B. | mother's pituitary |
| C. | both a and b |
| D. | decrease in level of progesterone |
| Answer» B. mother's pituitary | |
| 42. |
Chromosome doubling in every generation reproducing sexually is prevented by |
| A. | meiosis |
| B. | reduction division |
| C. | both a and b |
| D. | mitosis |
| Answer» D. mitosis | |
| 43. |
Seeds are capable of enduring unfavourable conditions when they are |
| A. | germinating |
| B. | dormant |
| C. | stored |
| D. | none of the above |
| Answer» C. stored | |
| 44. |
The twins which are produced sexually are |
| A. | identical twins |
| B. | true twins |
| C. | monozygotic twins |
| D. | fraternal twins |
| Answer» E. | |
| 45. |
Amniotic sac is filled with fluid for |
| A. | protection |
| B. | shock absorption |
| C. | nutrition |
| D. | both a and b |
| Answer» E. | |
| 46. |
Synchronization of reproductive behaviour of plants with their environment is done by |
| A. | photoperiodism and vernalisation |
| B. | respiration and vernalisation |
| C. | transpiration and photoperiodism |
| D. | respiration and transpiration |
| Answer» B. respiration and vernalisation | |
| 47. |
The reuirement of the length of dark period for cocklebur is |
| A. | 11-15 h |
| B. | 12-20 h |
| C. | 20-22 h |
| D. | 10-11 h |
| Answer» E. | |
| 48. |
In the absence of a male gamete in plants a diploid cell of ovule develops into a functional embryo through process of |
| A. | parthenogenesis |
| B. | apomixis |
| C. | budding |
| D. | haploid parthenogenesis |
| Answer» C. budding | |
| 49. |
Gram positive bacteria neisseria gonorrhoeae causes |
| A. | gonorrhoa |
| B. | syphilis |
| C. | genital herpes |
| D. | acquired immune deficiency syndrome (AIDS) |
| Answer» B. syphilis | |
| 50. |
Fertilization that occurs outside the body of an organism is called |
| A. | internal fertilization |
| B. | external fertilization |
| C. | copulation |
| D. | none of above |
| Answer» C. copulation | |