MCQOPTIONS
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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 13651. |
Rhizophore in Selaginella is [CET Pune 1998] |
| A. | A modified leaf |
| B. | A root |
| C. | A shoot |
| D. | Organ sui genesis |
| Answer» E. | |
| 13652. |
Development of embryo in Selaginella is |
| A. | Meroblastic |
| B. | Holoblastic |
| C. | Aposporous |
| D. | None of the above |
| Answer» B. Holoblastic | |
| 13653. |
Ligulate leaves are found in [MHCET 2001] |
| A. | Mosses |
| B. | Selaginella |
| C. | Fern |
| D. | Pinus |
| Answer» C. Fern | |
| 13654. |
In which one of the following species of Selaginella, the apex continues its vegetative growth beyond the formation of strobilus [BHU 1991] |
| A. | S. helvetica |
| B. | S. cuspidiata |
| C. | S. rupestris |
| D. | None of these |
| Answer» C. S. rupestris | |
| 13655. |
Protonema stage is found in [CPMT 2005] |
| A. | Ferns |
| B. | Mosses |
| C. | Liverworts |
| D. | Fungi |
| Answer» B. Mosses | |
| 13656. |
Mosses and ferns are found in moist and shady places because both [AIIMS 2004] |
| A. | Require presence of water for fertilization |
| B. | Do not need sunlight for photosynthesis |
| C. | Depend for their nutrition on micro-organisms which cane survive only at low temperature |
| D. | Can not compete with sun-loving plants |
| Answer» B. Do not need sunlight for photosynthesis | |
| 13657. |
Which statement is true [JIPMER 1993] |
| A. | Spores and gametes are invariably diploids |
| B. | Spores and gametes are invariably haploids |
| C. | Only gametes are invariably haploids |
| D. | Only spores are invariably diploids |
| Answer» C. Only gametes are invariably haploids | |
| 13658. |
Fern plant is a [MP PMT 1995] |
| A. | Haploid gametophyte |
| B. | Diploid gametophyte |
| C. | Diploid sporophyte |
| D. | Haploid sporophyte |
| Answer» D. Haploid sporophyte | |
| 13659. |
New leaf of ferns is called [RPMT 1995] |
| A. | Sporophyll |
| B. | Frond |
| C. | Leaf petiole |
| D. | Leaf node |
| Answer» C. Leaf petiole | |
| 13660. |
The cells of fern prothallus contains nucleus with [MP PMT 1987] |
| A. | 4n chromosomes |
| B. | 3n chromosomes |
| C. | 2n chromosomes |
| D. | n chromosomes |
| Answer» E. | |
| 13661. |
Spore of fern represents [CPMT 1989] |
| A. | Sporophytic stage |
| B. | Gametophytic stage |
| C. | Sporophytic and gametophytic stage |
| D. | Apomictic stage |
| Answer» C. Sporophytic and gametophytic stage | |
| 13662. |
Which of the following helps in coal formation [AFMC 2000] |
| A. | Bacteria |
| B. | Gymnosperm |
| C. | Pteridophytes |
| D. | Archaebacteria |
| Answer» D. Archaebacteria | |
| 13663. |
A stele without a central pith is called |
| A. | Solenostele |
| B. | Protostele |
| C. | Dictyostele |
| D. | Siphonostele |
| Answer» C. Dictyostele | |
| 13664. |
The main plant body of pteridophyte is |
| A. | Gametophyte |
| B. | Sporophyte |
| C. | Sporangium |
| D. | Prothallus |
| Answer» C. Sporangium | |
| 13665. |
Fern's prothallus normally is [BHU 1982] |
| A. | Haploid |
| B. | Diploid |
| C. | Triploid |
| D. | Tetraploid |
| Answer» B. Diploid | |
| 13666. |
In Dryopteris, the sori are borne [CPMT 1983] |
| A. | Laterally |
| B. | Abaxially |
| C. | Adaxially |
| D. | Marginally |
| Answer» C. Adaxially | |
| 13667. |
Sporophyte of Pteris is |
| A. | Independent of gametophyte from the very beginning |
| B. | Dependent upon gametophyte only in the beginning |
| C. | Dependent on gametophyte fully |
| D. | None of the above |
| Answer» C. Dependent on gametophyte fully | |
| 13668. |
Pteris differs from Funaria in having |
| A. | Dependent sporophyte |
| B. | An independent gametophyte |
| C. | Swimming antherozoids |
| D. | Dominant sporophytic phase |
| Answer» E. | |
| 13669. |
'Male shield fern' is |
| A. | Dryopteris |
| B. | Pteris |
| C. | Adiantum |
| D. | None of these |
| Answer» B. Pteris | |
| 13670. |
In Dryopteris, the antherozoids are [CPMT 1987, 89; BHU 1990] |
| A. | Biflagellate sickle-shaped |
| B. | Multiflagellate sickle shaped |
| C. | Multiflagellate spirally coiled |
| D. | Biflagellate spirally coiled |
| Answer» D. Biflagellate spirally coiled | |
| 13671. |
Mesophyll tissue of Pinus needle is composed of |
| A. | Armed parenchyma |
| B. | Chlorenchyma |
| C. | Spongy parenchyma |
| D. | Transfusion tissue |
| Answer» D. Transfusion tissue | |
| 13672. |
Transfusion tissue, a modified vascular tissue is present in the leaves of [BHU 1985; CBSE PMT 1998] |
| A. | Pinus |
| B. | Dryopteris |
| C. | Lycopodium |
| D. | Dalbergia |
| Answer» B. Dryopteris | |
| 13673. |
In Pinus only lower part of oospore is concerned with the development of embryo, such development is [CBSE PMT 1993] |
| A. | Meroblastic |
| B. | Periblastic |
| C. | Mesoblastic |
| D. | None of these |
| Answer» B. Periblastic | |
| 13674. |
The wood of pinus is [MP PMT 2000] |
| A. | Pycnoxylic and monoxylic |
| B. | Pycnoxylic and heteroxylous |
| C. | Manoxylic and homoxylous |
| D. | Manoxylic and heteroxylous |
| Answer» B. Pycnoxylic and heteroxylous | |
| 13675. |
Pinus seed shows |
| A. | Hypogeal germination |
| B. | Epigeal germination |
| C. | Dormancy |
| D. | None of the above |
| Answer» C. Dormancy | |
| 13676. |
Integument in Pinus ovule is |
| A. | Haploid |
| B. | Diploid |
| C. | Triploid |
| D. | Tetraploid |
| Answer» C. Triploid | |
| 13677. |
Pollination of pollen grains in Pinus takes place at |
| A. | One celled stage |
| B. | Two celled stage |
| C. | Three celled stage |
| D. | Four celled stage |
| Answer» E. | |
| 13678. |
What nature does, acicular nature of Pinus needle depicts |
| A. | Mesophytic |
| B. | Xerophytic |
| C. | Hydrophytic |
| D. | Sporophytic |
| Answer» C. Hydrophytic | |
| 13679. |
Needles of Pinus possess meristem at |
| A. | Apical portion |
| B. | Intercalary portion |
| C. | Basal portion |
| D. | Lateral portion |
| Answer» D. Lateral portion | |
| 13680. |
Cataphylls are [BHU 1991] |
| A. | Leaves of Selaginella |
| B. | Scaly leaves of Pinus |
| C. | Needles of Pinus |
| D. | Foliar leaves of Pinus |
| Answer» C. Needles of Pinus | |
| 13681. |
Winged seeds are found in [BHU 1978, 81; CMC Vellore 1993; CPMT 1995] |
| A. | Cycas |
| B. | Pinus |
| C. | Papaver species |
| D. | None of the above |
| Answer» C. Papaver species | |
| 13682. |
Antheridia and archegonia are most reduced in |
| A. | Bryophyta |
| B. | Selaginella |
| C. | Ferns |
| D. | Pinus |
| Answer» E. | |
| 13683. |
Assertion : ?Upper Carboniferous? period is also called ?Age of Ferns?. Reason : Ferns dominated during the period. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| Answer» D. If both the assertion and reason are false | |
| 13684. |
Female sex organ in Funaria is called [BHU 2000] |
| A. | Paraphysis |
| B. | Oospores |
| C. | Archegonium |
| D. | Artheridium |
| Answer» D. Artheridium | |
| 13685. |
Which place in India is called "The Golden Mine of Liverworts" [Kerala CET 2003] |
| A. | Eastern Himalayas |
| B. | Western Himalayas |
| C. | Western Ghats |
| D. | Eastern Ghats |
| Answer» C. Western Ghats | |
| 13686. |
In many bacteria the cell membrane becomes invaginated and folded to form [MP PMT 1997; MHCET 2001; AIEEE (Pharm.) 2004] |
| A. | Cristae |
| B. | Mesosomes |
| C. | Fimbriae |
| D. | Pili |
| Answer» C. Fimbriae | |
| 13687. |
Plasmids occur in [KCET 2001] |
| A. | Viruses |
| B. | Bacteria |
| C. | Chloroplasts |
| D. | Chromosomes |
| Answer» C. Chloroplasts | |
| 13688. |
A Dutch Scientist A.V. Leeuwenhoek discovered bacteria for first time in [AMU 1985; JIPMER 1999] |
| A. | Rain water |
| B. | Soil |
| C. | Air |
| D. | Garden soil |
| Answer» B. Soil | |
| 13689. |
Nucleic acids in chromosomes in bacteria are [CBSE PMT 1996; Pb. PMT 1999; AIEEE 2003] |
| A. | Two types of DNA and RNA |
| B. | Linear DNA |
| C. | Circular DNA |
| D. | Linear RNA |
| Answer» D. Linear RNA | |
| 13690. |
Under which of the following condition a Gram positive bacteria turns Gram negative |
| A. | Defective staining technique |
| B. | Changed pH of medium |
| C. | Aged bacterial culture |
| D. | All the above |
| Answer» E. | |
| 13691. |
Salmonella sp. is [MP PMT 2002] |
| A. | Monotrichous |
| B. | Lophotrichous |
| C. | Amphitrichous |
| D. | Peritrichous |
| Answer» E. | |
| 13692. |
Myxobacteria move by |
| A. | Flagella |
| B. | Gliding |
| C. | Action of axial filament |
| D. | None of the above |
| Answer» C. Action of axial filament | |
| 13693. |
Branched chain lipids occur in the cell membranes of |
| A. | Archaebacteria |
| B. | Mycoplasma |
| C. | Actinomycetes |
| D. | Streptomyces |
| Answer» B. Mycoplasma | |
| 13694. |
In Escherichia coli [CBSE PMT 1993] |
| A. | An organised nucleus is present |
| B. | One chromosome is present |
| C. | One DNA molecule is present |
| D. | One RNA molecule is present |
| Answer» C. One DNA molecule is present | |
| 13695. |
Nature of Bacillus rimosus is |
| A. | Nitrifying |
| B. | Denitrifying |
| C. | Ammonifying |
| D. | All the above |
| Answer» D. All the above | |
| 13696. |
Which of the following bacteria is largest |
| A. | Spirillum pestis |
| B. | Clostridium volutans |
| C. | Clostridium tetani |
| D. | Spirillum volutans |
| Answer» E. | |
| 13697. |
Bacterial photosynthesis is very peculiar because it takes place |
| A. | Without \[C{{O}_{2}}\] |
| B. | Without photosynthetic pigments |
| C. | Without light |
| D. | Without water |
| Answer» E. | |
| 13698. |
The main difference between Gram positive and Gram negative bacteria lies in the composition of [CBSE PMT 1990, 2001] |
| A. | Cilia |
| B. | Cell wall |
| C. | Neucleolus |
| D. | Cytoplasm |
| Answer» C. Neucleolus | |
| 13699. |
Penicillin and Vancomycin do not affect the mycoplasma because |
| A. | There is no cell wall |
| B. | There is no nucleus |
| C. | There is no mitochondria |
| D. | There is no golgi body |
| Answer» B. There is no nucleus | |
| 13700. |
The outermost limiting layer of mycoplasma is made up of [Orissa JEE 2002] |
| A. | Cell wall |
| B. | Cell membrane |
| C. | Mucilaginous sheath |
| D. | Slime layer |
| Answer» C. Mucilaginous sheath | |