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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which statement is incorrect?A. intine is the inner wal of pollen grain and exhibit fascinating array of pattern and designsB. the mature pollen grains has two cells the bigger is vegetative cell and the smalleer is geerative cell which floats in cytoplasm of vegatatve cellC. carrot grass pollens cause pollen allergyD. pollen grains of pea and rose maintain viability for months |
| Answer» Correct Answer - A | |
| 102. |
Select the incorrect pair of type of pollination and the corresponding pollinating agency.A. Anemophily - WindB. Hydrophily - WaterC. Ornithophily - BirdsD. Chiropterophily - Insects |
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Answer» Correct Answer - D Chiropterophily is pollination by bats. |
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| 103. |
Which statement is incorrect?A. I,II are incorrect but III IV are correctB. III IV are incorrect but I II are correctC. I III are incorrect but II IV are correctD. II IV are correct but I III are incorrect |
| Answer» Correct Answer - B | |
| 104. |
Mark the odd one (w.r.t post fertilisation events )A. ovules maturing into seedB. Development of endospermC. Fruit maturing into ovaryD. Development of embryo |
| Answer» Fruit maturing into ovary | |
| 105. |
Mark the odd one (q.r.t ploidy level)A. NucellusB. IntegumentC. FunicleD. Embryo sac |
| Answer» Correct Answer - Embryo sac | |
| 106. |
Mark the incorrect match (w.r.t pollination)A. yucca - pronubaB. ficus - anemophilyC. aristolochia - protogynousD. arachis - cleistogynous |
| Answer» Correct Answer - B | |
| 107. |
Which of the following statement is applicable for all flowering plants ? 1 Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad II The polllen grain reprsent male gametophyte III Pollen grains are usually traingular and 10-15 `mu m` in diameter IVsporopollenin is one of the most resistance organice material whihc can be destoryed only by storn acids and alkaliA. monosiphonous pollen tubeB. non motile and morphologically dissimilar gamestesC. presence of polliniumD. division of generatve cell after pollination |
| Answer» Correct Answer - B | |
| 108. |
Mark the incorrect statementA. outer three layers of anther wall are protective in functionB. sprorogenous tissue occupies the centre of each microsporangiumC. cell of tapetum and endothecium shw increase in DNA contents by endomitosis and olytenyD. ploidy level of microspore terad is haloid |
| Answer» Correct Answer - C | |
| 109. |
Pericarp is dry inA. guava mango mustardB. mango groundnut orangeC. groundnut mustardD. orange guava mango |
| Answer» Correct Answer - C | |
| 110. |
Find out the odd oneA. MicropyleB. Embryo sacC. NucellusD. Pollen grain |
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Answer» Correct Answer - D Pollen grain in male reproductive part of angiospermic plant while embryo sac, micropyle and necellus are female reproductive parts. |
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| 111. |
Pericarp is formed ofA. endopsermB. ovary wallC. tapetumD. epidermis |
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Answer» Correct Answer - B With the development of seed the tissue of ovary wall is also stimulated to grow. It produces pericarp. |
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| 112. |
Ruminate endosperm is commonly found in seeds ofA. CompositaeB. CruciferaeC. EuphorbiaceaeD. Annonaceae |
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Answer» Correct Answer - D Mature endosperm with any degree of irregularity and unevenness in its surface contour is called ruminate endosperm. It is known to occur in about 32 families of angiosperms. In family-Annonaceae, the ruminate endosperm is found. |
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| 113. |
Ruminate endosperm is commonly found in seeds ofA. annonaceae/Areca NutB. CompositaeC. CruciferaeD. Euphorbiaceae |
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Answer» Correct Answer - A Ruminate endosperm occurs in Annonaceae/areca nut. |
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| 114. |
Number of pollen grains produced by head inflorescence of Asteraceae (Compositae) having 10 flowers, if each anther produces 20 pollen grains are:A. 300B. 500C. 800D. 1000 |
| Answer» Correct Answer - D | |
| 115. |
Opposite the micropylar end, representing the basal part of the ovule is called:A. FunicleB. ChalazaC. MicropyleD. Hilum |
| Answer» Correct Answer - B | |
| 116. |
In castor proliveration of the outer integumentary cells at micropylar regionA. lacks hygroscopic abilityB. attarct ants and heps in myrmecophilyC. is called epiblastD. stores sugary substances |
| Answer» Correct Answer - D | |
| 117. |
In embryo sac, three cells are grouped together at the micropylar end and constitute.A. AntipodalsB. Central cellC. Egg apparatusD. Synergids |
| Answer» Correct Answer - C | |
| 118. |
Assertion Synergids are elongated cells that occur at the micropylar pole. Reason Synergids help in chemotropic movement of pollen tube.A. Both Assertion and Reson ae true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason are false |
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Answer» Correct Answer - B Synergids are found at the micropylar pole and their position is lateral to an egg. During pollen germination, synergids release some chemicals, which attract the pollen tube towards the embryo sac, such type of attraction is known as chemootropism. |
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| 119. |
Assertion Helobial endosperm occurs in dicots as well as in monotoc families. Reason It is the most advanced type of endosperm.A. Both Assertion and Reson ae true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Both Assertion and Reason are false |
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Answer» Correct Answer - D Helobial type of endosperm occurs is 19% families of monocots. It is an intermediate type of endosperm. |
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| 120. |
A: Apomicitic embryo is asexual mode of reproduction R: it prevents the segregation of traitsA. if both assetion A reason are ture and the reason is the correct explanation of the assertion then markB. if both assertion & reason are ture and the reason is not the correct explanation of the assertin then markC. if assertion is true statement but reason is false then markD. if both assertion and reason are flase statements then mark |
| Answer» Correct Answer - B | |
| 121. |
To a biologist, flowers are:A. Morphological marvelsB. Embryological marvelsC. Both a and bD. None of these |
| Answer» Correct Answer - C | |
| 122. |
the ovule of an angiosperm is technically equivalent toA. MegasporangiumB. MegasporophyllC. Megaspore mother cellD. Megaspore |
| Answer» Correct Answer - A | |
| 123. |
Which of the following statements is not correct?A. Pollen grains of many species can germinate on the stigma of a flower but only the pollen tube of the same species grows into the style.B. Insects that consume pollen or nectar without bringing about pollination are called pollen/nectar robbersC. Pollen germination and pollen tube growth are regualted by chemical components of pollen interacting with those of the pistilD. Some reptiles have also been reported as pollinators in some plant species. |
| Answer» Correct Answer - A | |
| 124. |
(i) Give the term for pollination by bat. (ii) Give one example of bat pollinated flowers. |
| Answer» (i) Chiropterophiyl (ii) Kigelia pinnata ( Sausage tree ). | |
| 125. |
In paddy and barley, pollens are viable only upto:A. 24 hoursB. One monthC. Several yearsD. 10-20 minutes only |
| Answer» Correct Answer - A | |
| 126. |
Pollens are produced in bulk in plants showin:A. EntomophilyB. HeterophyllyC. AnemophilyD. Hydrophily |
| Answer» Correct Answer - C | |
| 127. |
Aril develops from:A. NucellusB. MicropyleC. Third intergumentD. Funicle |
| Answer» Correct Answer - C | |
| 128. |
Pollination shows:A. Lever mechanismB. Rider mechanismC. Sticking mechanismD. None of these |
| Answer» Correct Answer - B | |
| 129. |
A microscope mother cell of Cyperus after meiosis gives rise to:A. 4- microsporesB. A pollinationC. Only two microsporesD. Only one microscope |
| Answer» Correct Answer - D | |
| 130. |
Nutritive function is best seen in:A. Eggs and synergidsB. Endosperms and tapetumC. Male or female gametesD. Endosperms and microspores |
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Answer» Correct Answer - B Tapetum provides nutrition to developing pollens and endosperms provide nutrition to developing embryo, thus both are nutritive in function. |
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| 131. |
Pollen grains accumulate excess of:A. ProteinsB. Lipids and fatsC. GlucoseD. Starch |
| Answer» Correct Answer - A | |
| 132. |
How many meiotic divisions are required to produce 100 pollens in Cyperus?A. 25B. 50C. 100D. 200 |
| Answer» Correct Answer - C | |
| 133. |
Stamen representsA. pollen grainsB. palmasC. flowersD. fruits |
| Answer» Correct Answer - A | |
| 134. |
How many meiotic divisions are requried to produce 104 male gemetes?A. 25B. 2651C. 13D. 26 |
| Answer» Correct Answer - D | |
| 135. |
Removing of stamen at immature stage is called______ |
| Answer» Correct Answer - Emasculation | |
| 136. |
Ubisch-bodies are associated with the development of:A. EndospermsB. Embryo sacC. EmbryoD. Pollens |
| Answer» Correct Answer - D | |
| 137. |
2 polar nuclei fuse together and form_______ |
| Answer» Correct Answer - Secondary nucleus | |
| 138. |
1 male gamete fuse with egg cell nucleus and formed_______ |
| Answer» Correct Answer - Zygote | |
| 139. |
Ubisch bodies are connected with the formation ofA. SporopolleninB. Intine and pollenkitC. ExineD. Pollenkit and pollinia |
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Answer» Correct Answer - C Ubisch bodies are connected with the formation of exine. |
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| 140. |
A unique phenomenon observed in the embryo sac of angisoperms isA. Fusion of gametesB. Double fusionC. Triple fusionD. Triple fusion and double fertilization |
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Answer» Correct Answer - D A unique phenomenon observed in the embryo sac of angiosperms is triple fusion and double fertilization. |
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| 141. |
After fertilization, in the embryo sac which will grow faster?A. EmbryoB. EndospermC. Embryo sacD. Synergids |
| Answer» Correct Answer - B | |
| 142. |
Endosperms in angiosperms is:A. HaustorialB. AssimilatoryC. ProtectiveD. Nutritive |
| Answer» Correct Answer - D | |
| 143. |
Coleoptile and coleorhiza are the protective sheats covering labelled part_____and_____respectively. A. P,RB. P,SC. P,QD. Q,P |
| Answer» Correct Answer - C | |
| 144. |
Banana is a parthenocarpic fruit whereas oranges show polyembryony. How ar they different from each other with respect to seeds ? |
| Answer» Banana fruits are seedless. Such fruits are called parhenocarpic, i.e., produce embryo without fertilization . The seds of oranges have many embryo of different size and shape. The orange seeds develop many embryos due to polyembryony. | |
| 145. |
Culture medium should be sterilized by:A. Hot air ovensB. AutoclaveC. IncubatorD. Phytotron |
| Answer» Correct Answer - B | |
| 146. |
Tapetum occurs inA. Anther wallB. Ovary wallC. Male gametophyteD. Female gametophyte |
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Answer» Correct Answer - A Tapetum occur in anther wall. |
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| 147. |
In embryogeny of dicot plants the suspensor cell undergoes transverse divisions forming susensor which isA. 6-10 celledB. 1-5 celledC. 11-15 celledD. 16-21 celled |
| Answer» Correct Answer - A | |
| 148. |
A: Eight cells of octant stage in dicot embryogeny are made by 2 vertical and one tranverse divisions in embryonal cell R: These cells are arranged in epibasal and hypobasal tierA. if both assetion A reason are ture and the reason is the correct explanation of the assertion then markB. if both assertion & reason are ture and the reason is not the correct explanation of the assertin then markC. if assertion is true statement but reason is false then markD. if both assertion and reason are flase statements then mark |
| Answer» Correct Answer - B | |
| 149. |
The record of oldest seed dormancy is ofA. 2,000 yearsB. 5,000 yearsC. 10,000 yearsD. 12,000 years |
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Answer» Correct Answer - C The oldest is that of a lupine, Lupinus arcticus excavated from Arctic Tundra. The seed germinated and flowered after an estimated record of 10,000 years of dormancy. |
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| 150. |
Seed dormancy allows the plants toA. Overcome unfavourable climactic conditionsB. Develop healthy seedsC. Reduce viabilityD. Prevent deterioration of seeds |
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Answer» Correct Answer - A Seed dormancy allows the plants to overcome unfavorable climatic conditions. |
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