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. |
Endometrium is made receptive for implantation of zygote by |
| A. | estrogen |
| B. | progesterone |
| C. | testosterone |
| D. | oxytocin |
| Answer» C. testosterone | |
| 2. |
Spermatic cord and spermatic duct are |
| A. | essentially similar |
| B. | different in functions and location |
| C. | similar in function only |
| D. | similar in location only |
| Answer» C. similar in function only | |
| 3. |
In oestrous cycle, hormone that prepares uterus for conception is |
| A. | testosterone |
| B. | androgen |
| C. | estrogen |
| D. | thyroxine |
| Answer» D. thyroxine | |
| 4. |
Evolution of pollen tube is an important step in land adaptation by |
| A. | spermatophytes |
| B. | bryophytes |
| C. | cycadophyta |
| D. | pinophyta |
| Answer» B. bryophytes | |
| 5. |
Primary oocytes divide meiotically into |
| A. | haploid secondary oocyte |
| B. | polar body |
| C. | haploid secondary oocyte and polar body |
| D. | diploid secondary oocyte |
| Answer» D. diploid secondary oocyte | |
| 6. |
In hone bees, male or drones develop from |
| A. | fertilized egg |
| B. | sperm |
| C. | unfertilized egg |
| D. | embyo |
| Answer» D. embyo | |
| 7. |
If two gametes uniting are different in size and structure, they are called |
| A. | heterogametes |
| B. | anisogamete |
| C. | isogamete |
| D. | Both a and b |
| Answer» E. | |
| 8. |
Total gestation period in humans is about |
| A. | 50 days |
| B. | 180 days |
| C. | 100 days |
| D. | 280 days |
| Answer» E. | |
| 9. |
Genetic variability in plants is higher due to |
| A. | self pollination |
| B. | mitosis |
| C. | cross pollination |
| D. | meiosis |
| Answer» D. meiosis | |
| 10. |
Key feature in vernalisation is |
| A. | high temperature |
| B. | low temperature |
| C. | low moisture |
| D. | high humidity |
| Answer» C. low moisture | |
| 11. |
Special condition of rest which enables an embryo to survive long periods of unfavourable conditions is called |
| A. | seed sleep |
| B. | seed inactivity |
| C. | seed dormancy |
| D. | seed rest |
| Answer» D. seed rest | |
| 12. |
Spermatogonia are produced by repeated division by cells of |
| A. | vas deferens |
| B. | symphysis pubis |
| C. | germinal epithelium |
| D. | rectum |
| Answer» D. rectum | |
| 13. |
Female reproductive cycle may be disturbed by |
| A. | malnourishment |
| B. | emotional stresses |
| C. | over-eating |
| D. | Both a and b |
| Answer» E. | |
| 14. |
Lactobacillus is used to convert milk sugar (lactose: C₁₂H₂₂O₁₁) into |
| A. | glucose |
| B. | glycogen |
| C. | lactic acid |
| D. | citric acid |
| Answer» D. citric acid | |
| 15. |
More complex form of life is a product of |
| A. | meiosis |
| B. | genetic recombination |
| C. | mitosis |
| D. | Both a and b |
| Answer» E. | |
| 16. |
Internal fertilization occurs most often in |
| A. | aquatic animals |
| B. | land-based animals |
| C. | microbes |
| D. | amphibians |
| Answer» C. microbes | |
| 17. |
In plants micropyle is the |
| A. | male gamete formed by the generative nucleus |
| B. | pollen tube formed through the vegetative nucleus |
| C. | opening in the wall of ovule |
| D. | enzyme secreted by the pollen tube to dissolve stigma and style |
| Answer» D. enzyme secreted by the pollen tube to dissolve stigma and style | |
| 18. |
Average age of menupause for females is |
| A. | 30 years |
| B. | 41 years |
| C. | 51 years |
| D. | 60 years |
| Answer» D. 60 years | |
| 19. |
Plumule refers to the |
| A. | developing shoot |
| B. | developing root |
| C. | developing leaves |
| D. | developing cotyledon |
| Answer» B. developing root | |
| 20. |
Male gametes have all characteristics but |
| A. | smaller in size |
| B. | lesser motile |
| C. | larger in numbers |
| D. | move to female gametes |
| Answer» C. larger in numbers | |
| 21. |
Fertilization that occurs outside body of an organism is called |
| A. | internal fertilization |
| B. | external fertilization |
| C. | copulation |
| D. | pollination |
| Answer» C. copulation | |
| 22. |
Sperm is carried out of testes and towards prostate and urethra by |
| A. | epididymis |
| B. | seminal vesicle |
| C. | vas deferens |
| D. | glans penis |
| Answer» D. glans penis | |
| 23. |
Advantages of Artificial Methods of Vegetative Reproduction include |
| A. | crops with better quality |
| B. | crops with more yield |
| C. | ability to produce plants with desirable qualities |
| D. | all of above |
| Answer» E. | |
| 24. |
All birds in nature are |
| A. | viviparous |
| B. | oviparous |
| C. | ovoviviparous |
| D. | viparous |
| Answer» C. ovoviviparous | |
| 25. |
Cloning has been used for desirable animals such as |
| A. | race horses |
| B. | prize bulls |
| C. | human |
| D. | Both a and b |
| Answer» E. | |
| 26. |
If a cell with 20 chromosomes undergoes mitosis, each daughter cell has |
| A. | 10 chromosomes |
| B. | 20 chromosomes |
| C. | 30 chromosomes |
| D. | 46 chromosomes |
| Answer» C. 30 chromosomes | |
| 27. |
Periodic reproductive cycle in females is commonly known as |
| A. | oestrous cycle |
| B. | menstrual cycle |
| C. | ovulatory cycle |
| D. | menupause |
| Answer» C. ovulatory cycle | |
| 28. |
Types of gametes produced by 2 pair of chromosomes can be |
| A. | 4 |
| B. | 6 |
| C. | 8 |
| D. | 10 |
| Answer» B. 6 | |
| 29. |
In reproduction of plants, seeds may be |
| A. | endospermic only |
| B. | non-endospermic only |
| C. | ectospermic |
| D. | endospermic and non endospermic |
| Answer» E. | |
| 30. |
Growth of pollen tube is controlled by the |
| A. | vegetative nucleus |
| B. | generative nucleus |
| C. | tube nucleus |
| D. | pollen grain |
| Answer» B. generative nucleus | |
| 31. |
Fruit development without fertilization with no seed formation is called |
| A. | binary fission |
| B. | pathenocarpy |
| C. | budding |
| D. | grafting |
| Answer» C. budding | |
| 32. |
In plants with alternation of generation, meiosis occurs during |
| A. | transportation |
| B. | sporogenesis |
| C. | parthenogenesis |
| D. | pollination |
| Answer» C. parthenogenesis | |
| 33. |
During ejaculation, passing of urine is prevented through |
| A. | pyloric sphincter glands |
| B. | sphincter muscles |
| C. | more blood in the blood spaces of penis |
| D. | none of others |
| Answer» C. more blood in the blood spaces of penis | |
| 34. |
Parthenocarpy occurs due to harmonal imbalance usually due to high level of |
| A. | ethene in ovaries |
| B. | auxin in ovaries |
| C. | gibberellin in ovaries |
| D. | cytokinin in ovaries |
| Answer» C. gibberellin in ovaries | |
| 35. |
Organisms having both sexes are known as |
| A. | bisexual organisms |
| B. | hermaphrodites |
| C. | unisexual organisms |
| D. | Both a and b |
| Answer» E. | |
| 36. |
In plants, Placenta is part of |
| A. | funicle that connects to the ovary |
| B. | fruit |
| C. | seed |
| D. | cotyledons |
| Answer» C. seed | |
| 37. |
External Fertilization occurs in |
| A. | terrestrial environment |
| B. | air |
| C. | aquatic environment |
| D. | both land and water |
| Answer» D. both land and water | |
| 38. |
Once placenta is established, it starts secreting hormone |
| A. | estrogen |
| B. | oxytocin |
| C. | progesterone |
| D. | testosterone |
| Answer» D. testosterone | |
| 39. |
Pituitary gland on onset of puberty releases |
| A. | somatotrophin hormone (STH) |
| B. | thyroid stimulating hormone (TSH) |
| C. | follicle stimulating hormone (FSH) |
| D. | oxytocin |
| Answer» D. oxytocin | |
| 40. |
Germination of seeds in some lettuce varieties is promoted by |
| A. | blue light |
| B. | red light |
| C. | green light |
| D. | white light |
| Answer» C. green light | |
| 41. |
Male gametes are also known as |
| A. | testes |
| B. | testis |
| C. | sperms |
| D. | semen |
| Answer» D. semen | |
| 42. |
Average loss of blood during child birth is |
| A. | 100 cm³ |
| B. | 350 cm³ |
| C. | 250 cm³ |
| D. | 150 cm³ |
| Answer» C. 250 cm³ | |
| 43. |
Urine is stored inside body in a sac called |
| A. | scrotum |
| B. | bladder |
| C. | ureter |
| D. | urethra |
| Answer» C. ureter | |
| 44. |
Plumule and radical generate from the |
| A. | zygote |
| B. | endosperm nucleus |
| C. | embryo |
| D. | bottom of the seed |
| Answer» B. endosperm nucleus | |
| 45. |
Tissue culturing can only be done for |
| A. | plant tissues |
| B. | animal cells |
| C. | both animal and plant cells |
| D. | atoms and ions |
| Answer» D. atoms and ions | |
| 46. |
In honey bee, males are haploid and produce sperms by |
| A. | meiosis |
| B. | budding |
| C. | mitosis |
| D. | layering |
| Answer» D. layering | |
| 47. |
Phytochromes exists in |
| A. | one form |
| B. | two forms |
| C. | three forms |
| D. | four forms |
| Answer» C. three forms | |
| 48. |
Process of development of a haploid offspring from a haploid egg is called |
| A. | haploid parthenogenesis |
| B. | diploid parthenogenesis |
| C. | single parthenogenesis |
| D. | double parthenogenesis |
| Answer» B. diploid parthenogenesis | |
| 49. |
Since the formation of sperms requires a temperature below the body temperature, |
| A. | testes lie in scrotal sacs |
| B. | more water intake is advised for mature males |
| C. | scrotal sacs are pouch like hanging extensions |
| D. | scrotal sacs are between the thighs |
| Answer» D. scrotal sacs are between the thighs | |
| 50. |
Ovoviparity occurs in |
| A. | duckbill platypus |
| B. | spiny ant eater |
| C. | garter snake |
| D. | all of the above |
| Answer» E. | |