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. |
Meiosis can be observed in [BVP 2003] |
| A. | Spore mother cells |
| B. | Microspores |
| C. | Megaspores |
| D. | Tapetal cells |
| Answer» B. Microspores | |
| 2. |
In angiosperm, all 4 microspores of tetrad are covered by a layer which is formed by [CBSE PMT 2002] |
| A. | Callose |
| B. | Cellulose |
| C. | Sporopollenin |
| D. | Pectocellulose |
| Answer» B. Cellulose | |
| 3. |
Generally in the wall of the anther lobes how many middle layers are formed |
| A. | Seven |
| B. | Three |
| C. | Six |
| D. | Nine |
| Answer» C. Six | |
| 4. |
Haploids can be obtained form [MHCET 2000] |
| A. | A pollen grains |
| B. | Root apex |
| C. | Shoot apex |
| D. | Embryo |
| Answer» B. Root apex | |
| 5. |
Tapetum is a part of [MP PMT 2000] |
| A. | Male gametophyte |
| B. | Female gametophyte |
| C. | Ovary wall |
| D. | Anther wall |
| Answer» E. | |
| 6. |
If a sporangium is derived from a single cell, it is called [BHU 2000] |
| A. | Leptosporangiate |
| B. | Eusporangiate |
| C. | Heterosporangiate |
| D. | Homosporangiate |
| Answer» B. Eusporangiate | |
| 7. |
In an young anther the four rows of cells which later produce pollen are called [MP PMT 1999] |
| A. | Antheridium |
| B. | Archesporium |
| C. | Tapetum |
| D. | Zoosporangium |
| Answer» C. Tapetum | |
| 8. |
How many pollen grains are formed from 10 microspore mother cells by meiosis [CBSE PMT 1996] |
| A. | 80 |
| B. | 40 |
| C. | 20 |
| D. | 10 |
| Answer» C. 20 | |
| 9. |
Germpore is the region where the exine is [MP PMT 1995] |
| A. | Thick |
| B. | Uniform |
| C. | Thick and uniform |
| D. | Absent |
| Answer» E. | |
| 10. |
Ubisch bodies found in tapetal cell help in formation of [BHU 1995] |
| A. | Pollen kit and pollinia |
| B. | Exine |
| C. | Sporopollenin |
| D. | Intine and pollen kit |
| Answer» B. Exine | |
| 11. |
Palynology deals with the study of [CPMT 1995] |
| A. | Pollen grains |
| B. | Chromosomes |
| C. | DNA |
| D. | Genes |
| Answer» B. Chromosomes | |
| 12. |
At the time of pollination, how many cells are formed in the pollen grains |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 13. |
In flowering plants, a mature 'male gametophyte' is derived from a 'pollen mother cell' by [BHU 1994] |
| A. | Three mitotic divisions |
| B. | One meiotic and two mitotic divisions |
| C. | Two meiotic divisions |
| D. | A single meiotic division |
| Answer» C. Two meiotic divisions | |
| 14. |
The anther wall consists of four wall layers where [CBSE PMT 1993; BVP 2003] |
| A. | Endothecium lies inner to middle layers |
| B. | Tapetum lies just inner to endothecium |
| C. | Tapetum lies next to epidermis |
| D. | Middle layers lie between endothecium and tapetum |
| Answer» E. | |
| 15. |
In another culture, some diploid plants were reported with haploids. They have evolved from [BHU 1992] |
| A. | Prothallial cell of pollen grain |
| B. | Generative cell of pollen grain |
| C. | Cell of anther wall |
| D. | Exine of pollen grain |
| Answer» D. Exine of pollen grain | |
| 16. |
Microsporogenesis is a synonym for [AMU 1991] |
| A. | Spermatogenesis |
| B. | Development of pollen |
| C. | Development of male gametophyte |
| D. | Development of female gametophyte |
| Answer» C. Development of male gametophyte | |
| 17. |
In plants meiosis occurs in [BHU 1991] |
| A. | Anther |
| B. | Root tip |
| C. | Cambium |
| D. | Pollen grain |
| Answer» B. Root tip | |
| 18. |
The odd one is [CBSE PMT 1991] |
| A. | Micropyle |
| B. | Embryo sac |
| C. | Nucellus |
| D. | Pollen grain |
| Answer» E. | |
| 19. |
In monocots, male gametophyte is [CBSE PMT 1990] |
| A. | Microspore |
| B. | Megaspore |
| C. | Tetrad |
| D. | Nucellus |
| Answer» B. Megaspore | |
| 20. |
In another culture, the androgenic haploid plants are obtained from [CBSE PMT 1990] |
| A. | Young pollen grain |
| B. | Connective tissue |
| C. | Anther tapetum |
| D. | Anther wall |
| Answer» B. Connective tissue | |
| 21. |
A microspore mother cell forms |
| A. | An ovule |
| B. | An embryo sac |
| C. | A pollen sac |
| D. | Pollen grains |
| Answer» E. | |
| 22. |
Development and formation of pollen grains in anther of the stamen is known as [CPMT 1987] |
| A. | Pollination |
| B. | Fertilization |
| C. | Microsporogenesis |
| D. | Megasporogenesis |
| Answer» D. Megasporogenesis | |
| 23. |
In a pollen grain, larger nucleus is [AFMC 1987] |
| A. | Generative nucleus |
| B. | Tube nucleus |
| C. | Vegetative nucleus |
| D. | None of these |
| Answer» C. Vegetative nucleus | |
| 24. |
Endothecium and tapetum in anther are derived from [AMU 1987] |
| A. | Primary sporogenous layer |
| B. | Primary parietal layer |
| C. | Both a and b |
| D. | None of the above |
| Answer» C. Both a and b | |
| 25. |
The function of innermost layer of pollen sac, tapetum is [MP PMT 1986; MHCET 2000, 02; BHU 2001; RPMT 2002; MP PMT 2005] |
| A. | Dehiscence |
| B. | Mechanical |
| C. | Protective |
| D. | Nutritive |
| Answer» E. | |
| 26. |
Occurrence of more than four spores from a spore mother cell is called [CPMT 1986] |
| A. | Polyspermy |
| B. | Polyspory |
| C. | Polyembryony |
| D. | Polysiphony |
| Answer» C. Polyembryony | |
| 27. |
The tapetal nuclei in anthers of many angiosperm flowers are [CPMT 1985] |
| A. | Mostly aneuploid |
| B. | Mostly polyploid |
| C. | Mostly haploid |
| D. | Not having complete haploid genome |
| Answer» C. Mostly haploid | |
| 28. |
In a flowering plant the largest number of haploid cells occur in [CPMT 1982] |
| A. | Ovule |
| B. | Microsporangia |
| C. | Root tip |
| D. | Cambium |
| Answer» C. Root tip | |
| 29. |
How many meiotic divisions are necessary to produce 100 pollen grains [CPMT 1976; BHU 1991; Bihar 1992; AIIMS 1993; RPMT 1995; CBSE PMT 1995; AFMC 1999] |
| A. | 100 |
| B. | 25 |
| C. | 50 |
| D. | 20 |
| Answer» C. 50 | |
| 30. |
The pollen grain is [NCERT 1974, 75, 76; CPMT 1978, 84; CBSE PMT 1993; RPMT 2002] |
| A. | An immature male gametophyte |
| B. | A mature male gametophyte |
| C. | Partially developed male gametophyte |
| D. | Last stage of male gametophyte |
| Answer» D. Last stage of male gametophyte | |
| 31. |
Another is generally composed of |
| A. | One sporangium |
| B. | Two sporangium |
| C. | Three sporangium |
| D. | Four sporangium |
| Answer» E. | |
| 32. |
How many microspore mother cells will give rise to 256 microspores after reduction division |
| A. | 512 |
| B. | 128 |
| C. | 64 |
| D. | 96 |
| Answer» D. 96 | |
| 33. |
The germpores on the pollen grains are found on the |
| A. | Exine only |
| B. | Intine only |
| C. | Both exine and intine |
| D. | Vegetative cell |
| Answer» B. Intine only | |
| 34. |
One pollen mother cell may produce four germinating pollen grains, each with two male nuclei and one tube nucleus. How many meiotic divisions are necessary to bring this about |
| A. | Two |
| B. | One |
| C. | Three |
| D. | Four |
| Answer» C. Three | |
| 35. |
The function of endothecium is |
| A. | Nutritional |
| B. | Mechanical support |
| C. | Dehiscence |
| D. | Protection |
| Answer» D. Protection | |
| 36. |
A schematic illustration of the pollen grain is called |
| A. | Pollenogram |
| B. | Palenogram |
| C. | Histogram |
| D. | Parallelogram |
| Answer» C. Histogram | |
| 37. |
Tectum, baculum, foot layer are the different parts of |
| A. | Microspore wall |
| B. | Microspore mother cell wall |
| C. | Megaspore wall |
| D. | Megaspore mother cell wall |
| Answer» B. Microspore mother cell wall | |
| 38. |
Before dehiscence of anther |
| A. | Middle layers enlarge |
| B. | Endothecium develops fibrous thickenings |
| C. | Tapetum develops fibrous thickenings |
| D. | Epidermis degenerates |
| Answer» C. Tapetum develops fibrous thickenings | |
| 39. |
Apple fruit develop internal cork due to deficiency of |
| A. | Magnesium |
| B. | Iron |
| C. | Manganese |
| D. | Boron |
| Answer» E. | |
| 40. |
Copper is the component of |
| A. | Cytochrome oxidase |
| B. | Plastocyanin |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» D. None of the above | |
| 41. |
The cauliflower become brown due to deficiency of |
| A. | Sodium |
| B. | Calcium |
| C. | Boron |
| D. | Nitrogen |
| Answer» D. Nitrogen | |
| 42. |
Photosynthetic photolysis of water takes place in presence of [MP PMT 1997] |
| A. | Mn |
| B. | Cl |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» D. None of the above | |
| 43. |
Major role of minor essential elements is to act as [AIEEE 2004] |
| A. | Co-factors of enzymes |
| B. | Building blocks of important amino acids |
| C. | Constituents of hormones |
| D. | Binders of cell structure |
| Answer» B. Building blocks of important amino acids | |
| 44. |
Boron in green plants assists in [CBSE PMT 2003] |
| A. | Sugar transport |
| B. | Activation of enzymes |
| C. | Acting as enzyme cofactor |
| D. | Photosynthesis |
| Answer» B. Activation of enzymes | |
| 45. |
Gray speck disease in oats takes place by the deficiency of [CBSE PMT 2003] |
| A. | Zinc |
| B. | Copper |
| C. | Potassium |
| D. | Manganese |
| Answer» E. | |
| 46. |
The plants accept Zn as [CBSE PMT 2000] |
| A. | \[Zn\] |
| B. | \[Z{{n}^{2+}}\] |
| C. | \[ZnO\] |
| D. | \[ZnS{{O}_{4}}\] |
| Answer» C. \[ZnO\] | |
| 47. |
Plastocyanin is a protein containing [BHU 1989; CPMT 1999] |
| A. | Mo |
| B. | Zn |
| C. | Fe |
| D. | Cu |
| Answer» E. | |
| 48. |
In a Citrus plantation, all the plants were found to be suffering from the die-back disease, spraying of fungicides was of no help. This problem was due to the deficiency of |
| A. | Copper |
| B. | Gibberellic acid |
| C. | Zinc |
| D. | Auxins |
| Answer» B. Gibberellic acid | |
| 49. |
Which of the following is a micro-nutrient or a trace element [MP PMT 1990; CPMT 1980; DPMT 1985; RPMT 1995] |
| A. | Mg |
| B. | Zn |
| C. | Ca |
| D. | P |
| Answer» C. Ca | |
| 50. |
Function of zinc is [MP PMT 1992] |
| A. | Synthesis of chlorophyll |
| B. | Biosynthesis of 3 IAA |
| C. | Closing of stomata |
| D. | Oxidation of carbohydrate |
| Answer» C. Closing of stomata | |