A characteristic feature of a “true slime mould” is
1.Occurs as an independent cell
2.A multinucleate plasmodial stage
3.Secretes mucoidal exudate
4.None of the above
Posted Date:-2021-02-22 06:38:30
Bones of the reptiles are covered by
1.Keratin
2. Chitin
3.Calcium
4.none of the above
Posted Date:-2021-02-22 06:38:30
If the endosperm cell of a dicot plant contains 30 chromosomes, find the number of chromosomes present in the root cells of the plant
1.40
2.10
3.20
4.15
Posted Date:-2021-02-22 06:38:30
In Paramecium, both autogamy and conjugation are called sexual reproduction because of
1. rejuvenation
2.gene combination
3. the fusion of haploid gametes
4.involvement of two individuals
Posted Date:-2021-02-22 06:38:30
In Paramecium, metabolic activities and growth is regulated by
1.macronucleus
2.micronucleus
3.both (a) and (b)
4.contractile vacuole
Posted Date:-2021-02-22 06:38:30
In Paramecium, osmoregulation occurs through
1. body surface
2.pseudopodia
3.nucleus
4.contractile vacuole
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Reptilian ancestry of birds can be indicated by
1.Eggs with the calcareous shell
2.four-chambered heart
3.scales on their hindlimb
4.presence of crop and gizzard
Posted Date:-2021-02-22 06:38:30
Slime mould differ from fungi in having
1.Phagocytosis mode of nutrition
2.Amoeboid cells
3.Both (a) and (b)
4.None of the above
Posted Date:-2021-02-22 06:38:30
Sporangia of slime mould contain
1.Haploid spores
2.Diploid zygotes
3. Gametes
4.None of the above
Posted Date:-2021-02-22 06:38:30
Where does the spore formation occur in cellular slime mould?
1.Plasmodium
2.Sporangium
3.Sporophore
4.Pseudoplasmodium
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Which of the following is incorrect for ascomycetes
1. they are unicellular as well as multicellular
2.they are parasitic, saprophytic or coprophilous
3.Neurospora, Claviceps and yeast belong to Ascomycota
4.coenocytic mycelium
Posted Date:-2021-02-22 06:38:30
Which of the following protozoan causes African sleeping sickness
1.Plasmodium vivax
2.Entamoeba gingivalis
3. Trypanosoma lewsii
4.Trypanosoma gambiense
Posted Date:-2021-02-22 06:38:30
Which of the organism produces aflatoxin?
1.fungi
2. virus
3.nematodes
4. bacteria
Posted Date:-2021-02-22 06:38:30
Animals that get most affected by the change in the environmental temperature are
1.aquatic
2.homeothermic
3.poikilothermic
4.desert living
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Aquatic reptiles are
1. ammonotelic
2. ureotelic
3.ureotelic over land
4.ureotelic in water
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Aspergillus has _______ hyphae
1.aseptate and uninucleate
2. aseptate and multinucleate
3.septate and uninucleate
4.septate and multinucleate
Posted Date:-2021-02-22 06:38:30
Claviceps produces
1. LSD
2. marijuana
3.ganja
4.charas
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Conjugation as a mode of reproduction is present in
1. ciliata
2.flagellata
3.sarcodina
4.sporozoa
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Dikaryon phase has
1.diploid nucleus
2. two similar nuclei
3.two dissimilar haploid nuclei
4.two haploid nuclei
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Dikaryophase and septate mycelium are characteristic features of which of the following class?
1.Ascomycetes and Basidiomycetes
2. Phycomycetes and Ascomycetes
3.Deuteromycetes
4.All of the above
Posted Date:-2021-02-22 06:38:30
Ergot is caused by
1.Penicillium
2.Rhizobium
3.Claviceps
4.Aspergillus
Posted Date:-2021-02-22 06:38:30
Find the correct statement about class Reptilia
1.dry and cornified skin, epidermal scales and absence of external ears
2.marine habitat, endoskeleton is cartilaginous and have placoid scales
3. fresh-water habitat, bony endoskeleton and air-bladder for buoyancy
4.moist skin and body is devoid of scales, the ear is represented by the tympanum
Posted Date:-2021-02-22 06:38:30
Find the correctly matched pair without any exceptions
1.Chondrichthyes- cartilaginous endoskeleton
2.Reptilia- 3 chambered heart with undivided ventricle
3. Mammalia- viviparous
4.Chordata- have mouth with a lower and upper jaw
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Glyoxysomes are present in
1.root hairs
2.palisade cells of leaf
3. endosperm of wheat
4.endosperm of castor
Posted Date:-2021-02-22 06:38:30
Which of the following class of protozoa does not generally contain contractile vacuole?
1.Sporozoa
2. Rhizopoda
3.Flagellata
4.Cilliata
Posted Date:-2021-02-22 06:38:30
In Paramecium, genetic information is stored in
1. all the nuclei present
2. all the nuclei present
3.micronucleus
4.macronucleus
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In Paramecium, food is ingested through
1.cytoproct
2.cytopyge
3.cytosome
4. cytopharynx
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Mycorrhiza shows
1.endemism
2. antagonism
3.parasitism
4.symbiosis
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Paramecium are
1.holophytic
2.holozoic
3.parasitic
4.saprobiotic
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Phylum Protozoa is classified based on
1.size
2.shape
3. number of nuclei
4.locomotory organ
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Slime moulds were included in which of the following kingdom?
1.Monera
2.Protista
3.Fungi
4. Plantae
Posted Date:-2021-02-22 06:38:30
Slime moulds, algae, protozoa are related in having
1. Eukaryotic cell
2.Prokaryotic cell
3.Flagella
4.Pseudopodia
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Slug formation is induced by
1.Over crowding
2. Plentiful resources
3.Both (a) and (b)
4.Unfavourable conditions
Posted Date:-2021-02-22 06:38:30
Spores of slime moulds develop into
1. Amoeboid cells
2.Biflagellated cells
3.Swarm cells
4.All of the above
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The outermost proteinaceous layer of maize endosperm is called
1.pericarp
2.epidermis
3.aleurone
4.tunica
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The polar nuclei and male gamete fuse to form
1.secondary nucleus
2.zygote
3. triple fusion
4. PEN
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The primary endosperm nucleus is
1.tetraploid
2.triploid
3. diploid
4.haploid
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The respiratory organ in reptiles is
1. gills
2.epidermis
3.skin
4.lungs
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The sunflower embryo has
1. 3 cotyledons
2. 2 cotyledons
3.single cotyledon
4.cotyledon is absent
Posted Date:-2021-02-22 06:38:30
The white edible part of maize is
1.pericarp
2.seed coat
3.endosperm
4.seed
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Trichocyst of Paramecium is required for
1.osmoregulation
2.nutrition
3.reproduction
4.defence
Posted Date:-2021-02-22 06:38:30
Trypanosoma belongs to which of the following group?
1.mastigophora
2.sarcodina
3.sporozoa
4.ciliata
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Unicellular eukaryotes are grouped in
1. Protista
2.Monera
3. Fungi
4. Archaea
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Uricotelism is found in
1.frogs and toads.
2. birds, land reptiles and insects
3. mammals and birds
4. fish and freshwater protozoans
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Which is the example of slime mould?
1.Anabaena
2.Rhizopus
3. Physarum
4.Thiobacillus
Posted Date:-2021-02-22 06:38:30
Which of the following characteristic structure is found in slime mould?
1.Pseudoelaters
2.Elaters
3. Capitulum
4.Capillitium
Posted Date:-2021-02-22 06:38:30
Which of the following is a living fossil?
1.Dinosaurs
2.Snakes
3.Tuatara
4.Lizards
Posted Date:-2021-02-22 06:38:30
Which of the fungi produces toxins in crop plants?
1.Colleotrichum
2.Aspergillus
3. Penicillium
4. both (b) and (c)
Posted Date:-2021-02-22 06:38:30
Which one of the following dicot plant lacks cotyledon
1. Ranunculus
2.Cuscuta
3.Pistia
4.Dianthus
Posted Date:-2021-02-22 06:38:30
Which one of the following is incorrect
1.Neurospora is widely used in genetic studies
2.Yeast reproduces by budding
3.Penicillium species are used in cheese production
4.None of the above
Posted Date:-2021-02-22 06:38:30