MCQOPTIONS
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MCQOPTIONS
This section includes 35 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In asexual reproduction offspring are produced by |
| A. | Meiosis |
| B. | Mitosis |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 2. |
Which method is of asexual reproduction? |
| A. | Sporulation |
| B. | Fission |
| C. | Apomixis |
| D. | All of these |
| Answer» E. | |
| 3. |
Gametes in animals are produced by |
| A. | Mitosis |
| B. | Meiosis |
| C. | Fission |
| D. | Apomixis |
| Answer» B. Meiosis | |
| 4. |
In sexual reproduction, plants have diplohaplontic life cycle with alternating |
| A. | Diploid sporophyte and haploid gametophyte generations |
| B. | Haploid sporophyte and diploid gametophyte generations |
| C. | Diploid sporophyte and diploid gametophyte generations |
| D. | Haploid sporophyte and haploid gametophyte generations |
| Answer» B. Haploid sporophyte and diploid gametophyte generations | |
| 5. |
In parthenocarpy which levels are high in ovaries |
| A. | Gibberalins |
| B. | Cytokinins |
| C. | Auxins |
| D. | All of these |
| Answer» D. All of these | |
| 6. |
Seeds are dormant in conditions of |
| A. | Water scarcity |
| B. | Low temperature |
| C. | Harsh winters |
| D. | All of these |
| Answer» E. | |
| 7. |
Developing seeds are rich source of |
| A. | Auxins |
| B. | Gibberellins |
| C. | Cytokinins |
| D. | All of these |
| Answer» E. | |
| 8. |
What is critical in photoperiodism? |
| A. | Length of light period |
| B. | Length of dark period |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 9. |
Which one is not a day neutral plant? |
| A. | Cucumber |
| B. | Maize |
| C. | Cotton |
| D. | Tobacco |
| Answer» E. | |
| 10. |
In biennials and perennials, low temperature stimulus is not received by |
| A. | Shoot apex of mature stem |
| B. | Embryo of the seed |
| C. | Leaves of the plants |
| D. | None of the above |
| Answer» D. None of the above | |
| 11. |
Development of an egg into zygote without fertilization is called |
| A. | Parthenogenesis |
| B. | Apomixes |
| C. | Parthenocarpy |
| D. | None of these |
| Answer» B. Apomixes | |
| 12. |
In which organism males are haploid |
| A. | Aphids |
| B. | Honey bee |
| C. | Mosquito |
| D. | Butterfly |
| Answer» C. Mosquito | |
| 13. |
In cloning, nucleus is introduced into |
| A. | Somatic cell |
| B. | Egg cell |
| C. | Sperm cell |
| D. | None of these |
| Answer» C. Sperm cell | |
| 14. |
Which characteristic is not of identical twins? |
| A. | Produced by separation of two blastomeres |
| B. | Have different genetic makeup |
| C. | Produced asexually |
| D. | Produced when embryo is at two cell stage |
| Answer» C. Produced asexually | |
| 15. |
Viviparous animals are those in which |
| A. | Internal fertilization with external development in eggs |
| B. | Internal fertilization with internal development inside female body |
| C. | Internal fertilization and internal development followed by hatching of egg |
| D. | External fertilization with external development |
| Answer» C. Internal fertilization and internal development followed by hatching of egg | |
| 16. |
Example of ovoviviparous |
| A. | Reptiles |
| B. | Mammals |
| C. | Duckbill platypus |
| D. | Frog |
| Answer» D. Frog | |
| 17. |
Sertoli cells |
| A. | Provide liquid medium to cells in testes |
| B. | Provide protection and nourishment to cells |
| C. | Secrete testosterone |
| D. | Both a and b |
| Answer» E. | |
| 18. |
Fertilization of ovum occurs |
| A. | In proximal part of oviduct |
| B. | In distal part of oviduct |
| C. | In uterus |
| D. | In ovary |
| Answer» B. In distal part of oviduct | |
| 19. |
Duration of menstrual cycle is |
| A. | 25 days |
| B. | 26 days |
| C. | 27 days |
| D. | 28 days |
| Answer» E. | |
| 20. |
Progesterone is secreted by |
| A. | Ripening follicles |
| B. | Uterine epithelium |
| C. | Corpus luteum |
| D. | Fertilized egg |
| Answer» D. Fertilized egg | |
| 21. |
Total gestation period is about |
| A. | 350 days |
| B. | 200 days |
| C. | 280 days |
| D. | 320 days |
| Answer» D. 320 days | |
| 22. |
Fetus is human embryo from the beginning of |
| A. | 2nd month |
| B. | 3rd month |
| C. | 4th month |
| D. | 5th month |
| Answer» C. 4th month | |
| 23. |
Average loss of blood during birth is about |
| A. | 250 cm3 |
| B. | 350 cm3 |
| C. | 450 cm3 |
| D. | 150 cm3 |
| Answer» C. 450 cm3 | |
| 24. |
The animals in which there are separate male and female individuals are called |
| A. | Unisexual |
| B. | Bisexual |
| C. | Hermaphrodite |
| D. | None of these |
| Answer» B. Bisexual | |
| 25. |
In which of the following animals, placenta is formed? |
| A. | Prototherians |
| B. | Metatherians |
| C. | Eutherians |
| D. | None of these |
| Answer» D. None of these | |
| 26. |
Which of these cycles operate in human females? |
| A. | Oestrous cycle |
| B. | Menstrual cycle |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 27. |
During birth which of following act as birth canal? |
| A. | Oviduct |
| B. | Uterine tube |
| C. | Uterus |
| D. | Vagina |
| Answer» E. | |
| 28. |
Nutrition to egg in ovary is provided by |
| A. | Germ cells |
| B. | Follicle cells |
| C. | Milk cells |
| D. | None of these |
| Answer» C. Milk cells | |
| 29. |
End of menstrual cycle in old age is called |
| A. | Andropause |
| B. | Menopause |
| C. | Gametopause |
| D. | All of these |
| Answer» C. Gametopause | |
| 30. |
Critical day length for cocklebur is |
| A. | 8.5 hrs |
| B. | 10-11 hrs |
| C. | 13-14 hrs |
| D. | 15.5 hrs |
| Answer» E. | |
| 31. |
In asexual reproduction offspring are genetically |
| A. | Identical to the parents |
| B. | Non identical to the parents |
| C. | Identical if mutations do not occur. |
| D. | Both a and c |
| Answer» E. | |
| 32. |
Evolution of pollen tube is parallel to the evolution of |
| A. | Leaf |
| B. | Plant |
| C. | Flower |
| D. | Seed |
| Answer» E. | |
| 33. |
Resumption of normal growth by a dormant embryo is called |
| A. | Seed dormancy |
| B. | Germination |
| C. | Fruit set |
| D. | Fruit ripening |
| Answer» C. Fruit set | |
| 34. |
________ is a quiescent form of phytochrome. |
| A. | P630 |
| B. | P660 |
| C. | P730 |
| D. | P760 |
| Answer» C. P730 | |
| 35. |
Apomixis is a form of |
| A. | Parthenocarpy |
| B. | Vernalization |
| C. | Parthenogenesis |
| D. | None of these |
| Answer» D. None of these | |