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. |
Endosperm nucleus is formed when |
| A. | male gamete fuses with ovum |
| B. | male gamete fuses with definitive nucleus |
| C. | male gamete enter microphyll |
| D. | male gamete is formed from generative nucleus |
| Answer» C. male gamete enter microphyll | |
| 2. |
Female body is prepared for lactation by |
| A. | luteotropic hormone (LTH) |
| B. | human placental lactogen |
| C. | oxytocin |
| D. | Both a and b |
| Answer» E. | |
| 3. |
Beneath the prostrate gland is |
| A. | Cowper's gland |
| B. | vas deferens |
| C. | seminal vesicle |
| D. | ureter |
| Answer» B. vas deferens | |
| 4. |
In plants, Fertilization is the |
| A. | fusion of one male gamete with ovum |
| B. | formation of endosperm nucleus |
| C. | dispersal of seeds |
| D. | splitting up of generative nucleus |
| Answer» B. formation of endosperm nucleus | |
| 5. |
Premature birth or miscarriage is caused by disturbances in secretion of |
| A. | progesterone |
| B. | oxytocin |
| C. | estrogen |
| D. | testosterone |
| Answer» B. oxytocin | |
| 6. |
Primary male sex hormone produced by male reproductive system is |
| A. | gibberellins |
| B. | testosterone |
| C. | adrenalin |
| D. | thyroxine |
| Answer» C. adrenalin | |
| 7. |
Mucous membrane of urinogenital tract is affected in |
| A. | gonorrhoa |
| B. | syphilis |
| C. | genital herpes |
| D. | acquired immune deficiency syndrome (AIDS) |
| Answer» B. syphilis | |
| 8. |
Seminal fluid or semen provides |
| A. | liquid medium to sperms |
| B. | protection to sperms |
| C. | nourishment to sperms |
| D. | all of the above |
| Answer» E. | |
| 9. |
Sperms are developed at a temperature |
| A. | lower than the body |
| B. | higher than the body |
| C. | equal to the body temperature |
| D. | dependent on the pressure |
| Answer» B. higher than the body | |
| 10. |
Chromosome doubling in every generation reproducing sexually is prevented by |
| A. | meiosis |
| B. | reduction division |
| C. | mitosis |
| D. | Both a and b |
| Answer» E. | |
| 11. |
Male gametes formed by generative nucleus are |
| A. | motile |
| B. | non-motile |
| C. | saturated |
| D. | unsaturated |
| Answer» C. saturated | |
| 12. |
Spread of diseases can be reduced through proper |
| A. | plantation of seeds |
| B. | seed dispersal |
| C. | overcrowding of species in a certain area |
| D. | germination of seeds |
| Answer» C. overcrowding of species in a certain area | |
| 13. |
In human females, periodic reproductive cycle is completed in approximately |
| A. | 10 days |
| B. | 18 days |
| C. | 28 days |
| D. | 40 days |
| Answer» D. 40 days | |
| 14. |
Blue light sensitive pigments found in plants are called |
| A. | phytochromes |
| B. | chlorophylls |
| C. | anthocyanins |
| D. | carotenes |
| Answer» B. chlorophylls | |
| 15. |
Uterine contractions during child birth are strongest from |
| A. | bottom to top |
| B. | top to bottom |
| C. | side ways |
| D. | centre to top |
| Answer» C. side ways | |
| 16. |
Lemon and hibiscus are grown through |
| A. | budding |
| B. | grafting |
| C. | layering |
| D. | marcotting |
| Answer» B. grafting | |
| 17. |
In reproduction Semen refers to mixture of |
| A. | fluid and sperms |
| B. | blood and water |
| C. | blood and sperms |
| D. | blood and fluid |
| Answer» D. blood and fluid | |
| 18. |
Reuirement of 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. | |
| 19. |
In ovoviparous animals, embryo receives its nourishment from |
| A. | mother's blood |
| B. | placenta |
| C. | egg white |
| D. | egg yolk |
| Answer» E. | |
| 20. |
Number of chromosomes in each cell except gametes in man are |
| A. | 23 |
| B. | 28 |
| C. | 46 |
| D. | 48 |
| Answer» D. 48 | |
| 21. |
Oviduct is also called |
| A. | fallopian tube |
| B. | uterine tube |
| C. | urethra |
| D. | Both a and b |
| Answer» E. | |
| 22. |
Phytochrome p660 absorbs red light at a wave length of |
| A. | 330nm |
| B. | 440nm |
| C. | 660nm |
| D. | 550nm |
| Answer» D. 550nm | |
| 23. |
In unfavourable environmental conditions, a seed may has to face |
| A. | water scarcity |
| B. | low temperature |
| C. | abundant water supply |
| D. | Both a and b |
| Answer» E. | |
| 24. |
Gametes in maize plants have |
| A. | 10 chromosomes |
| B. | 20 chromosomes |
| C. | 30 chromosomes |
| D. | 46 chromosomes |
| Answer» B. 20 chromosomes | |
| 25. |
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 | |
| 26. |
Flowering is inhibited in short day plants and promoted in long day plants by |
| A. | yellow light |
| B. | red light |
| C. | blue light |
| D. | white light |
| Answer» C. blue light | |
| 27. |
Sexual reproduction involves |
| A. | mitosis |
| B. | budding |
| C. | meiosis |
| D. | tubers |
| Answer» D. tubers | |
| 28. |
Marcotting is suitable for |
| A. | sugar-cane |
| B. | oleander |
| C. | tapioca |
| D. | rambutan |
| Answer» E. | |
| 29. |
Almonds can grow successfully if stock and scion are |
| A. | of the related species |
| B. | of different species |
| C. | of similar groups |
| D. | of different class |
| Answer» B. of different species | |
| 30. |
Budding is a method of asexual reproduction found in |
| A. | hydra |
| B. | honey bee |
| C. | bacteria |
| D. | virus |
| Answer» B. honey bee | |
| 31. |
In reproduction of plants exine refers to the |
| A. | outer wall of the mature pollen grain |
| B. | pollen tube germinating through the style |
| C. | sticky material of the stigma |
| D. | lodicule of the bracts |
| Answer» B. pollen tube germinating through the style | |
| 32. |
Seed plants are predominantly seen all around us due to good characteristics like |
| A. | modification of flower |
| B. | infloresence for pollination |
| C. | gamete transfer by pollen tubes |
| D. | all of the above |
| Answer» E. | |
| 33. |
Key feature of identical twins is that |
| A. | they are genetically different |
| B. | they are genetically identical |
| C. | they are produced sexually |
| D. | they are produced from two different eggs |
| Answer» C. they are produced sexually | |
| 34. |
Male gonads are known as |
| A. | testes |
| B. | testis |
| C. | ovaries |
| D. | ovum |
| Answer» E. | |
| 35. |
Cloned animals cannot withstand |
| A. | out break of a disease |
| B. | environmental changes |
| C. | epidemics |
| D. | all of the above |
| Answer» E. | |
| 36. |
Identical twins are result of |
| A. | meiotic division |
| B. | non-disjunction of chromosomes |
| C. | mitotic division |
| D. | both mitotic and meiotic division |
| Answer» D. both mitotic and meiotic division | |
| 37. |
In plants gametes fusion occurs in |
| A. | sexual reproduction |
| B. | asexual reproduction |
| C. | bisexual reproduction |
| D. | unisexual reproduction |
| Answer» B. asexual reproduction | |
| 38. |
Motile male gamete or sperm is also known as |
| A. | ova |
| B. | antherozoid |
| C. | zygote |
| D. | archegonia |
| Answer» C. zygote | |
| 39. |
Spirochaete, treponema pallidum causes |
| A. | gonorrhoa |
| B. | syphilis |
| C. | genital herpes |
| D. | acquired immune deficiency syndrome (AIDS) |
| Answer» C. genital herpes | |
| 40. |
Technique in which cambium tissue is provided nutrients to grow and differentiate into a new plant is called |
| A. | gene sequencing |
| B. | tissue culture technique |
| C. | gene therapy |
| D. | genetic engineering |
| Answer» C. gene therapy | |
| 41. |
In willow trees, the cotton wool is mostly made of |
| A. | air ducts |
| B. | air floats |
| C. | cellulose |
| D. | starch |
| Answer» D. starch | |
| 42. |
Ovary and ovules form the |
| A. | fruit |
| B. | non-endospermic seeds |
| C. | provide food to growing cotyledons |
| D. | shell of hard fruits |
| Answer» B. non-endospermic seeds | |
| 43. |
In higher vertebrates, zygote after fertilization undergoes cell division by mitosis called |
| A. | separation |
| B. | segregation |
| C. | cleavage |
| D. | division |
| Answer» D. division | |
| 44. |
Tobacco plant flowers only after exposure to |
| A. | a series of long days |
| B. | a series of dark days |
| C. | a series of light days |
| D. | a series of short days |
| Answer» E. | |
| 45. |
Organisms produced from a single cell by subculturing are called |
| A. | copies |
| B. | clones |
| C. | replicas |
| D. | partners |
| Answer» C. replicas | |
| 46. |
A warm spell in winter for seed is |
| A. | permanent favourable |
| B. | temporary favourable |
| C. | apparently favourable |
| D. | not favourable |
| Answer» C. apparently favourable | |
| 47. |
Reduction of progesterone level stimulates pituitary gland to produce |
| A. | oxytocin |
| B. | thyroxine |
| C. | adrenaline |
| D. | epinephrine |
| Answer» B. thyroxine | |
| 48. |
Parthenocarpic fruits with no seeds are |
| A. | bananas |
| B. | pineapples |
| C. | oranges |
| D. | all of the above |
| Answer» E. | |
| 49. |
In plants intine refers to the |
| A. | pollen tube germinating through the style |
| B. | inner wall of the mature pollen grain |
| C. | part connecting ovule with placenta |
| D. | fruit chambers in the zygote |
| Answer» C. part connecting ovule with placenta | |
| 50. |
Phenomenon of releasing ovum from ovary is called |
| A. | ejaculation |
| B. | ejection |
| C. | oocytation |
| D. | ovulation |
| Answer» E. | |