Zoology Botany Solved MCQs.

Zoology (1) Despite the structural diversities they are characterized by having soft body protected by calcareous shell developing ...


Zoology

(1) Despite the structural diversities they are characterized by having soft body protected by calcareous shell developing from the mantle layer.
(a) Corals
(b) Foraminiferous
(c) Molluses
(d) None of these
(c) Molluses
(2) The members of the phylum are exclusively Marine.
(a) Porifera
(b) Coelenterata
(c) Echino-dermata
(d) None of these
(c) Echino-dermata
(3) How many paired legs are present in Arachnids?
(a) 2 pairs
(b) 3 pairs
(c) 4 pairs
(d) None of these
(c) 4 pairs
(4) A true Coelom is absent in:
(a) Platyhelminthes
(b) Mollusca
(c) Insects
(d) None of these

(a) Platyhelminthes
(5) A single aperture is present in
(a) Nematoda
(b) Cridaria
(c) Annelida
(d) None of these

(b) Cridaria
(6) The following represents Enterocoelous phylum.
(a) Annelida
(b) Mollusca
(c) Echinodermata
(d) None of these
(c) Echinodermata
(7) It is exclusively a Parasitic group.
(a) Ciliata
(b) Mestigophora
(c) Rhizopoda
(d) Sporozoa
(e) None of these
(d) Sporozoa
(8) Most species of Animal Kingdom belong to this Class:
(a) Acazina
(b) Hexapoda
(c) Crustacea
(d) None of these

(b) Hexapoda
(9) Insect mouth parts are serially homologous.
(a) Claspers
(b) Sting apparatus
(c) Cerci
(d) Legs
(e) None of these
(d) Legs
(10) The only groups of animals which are diploblastic in nature:
(a) Platy helminthes
(b) Coelentrata
(c) Porifera
(d) None of these
(b) Coelentrata
11) The phenomenon in which larva becomes sexually mature.
(a) Retrogressive Metamorphosis
(b) Neoteny
(c) Both ‘a’ and ‘b’
(d) None of these
(b) Neoteny
(12) Amphibians have the following number of chambers in their heart.
(a) 2
(b) 3
(c) 4
(d) 5
(e) None of these
(b) 3
(13) The young are born in less developed condition.
(a) Monotremes
(b) Marsupials
(c) Placentals
(d) None of these

(b) Marsupials
(14) Limbs of Sea Cows and Sea Lions are the product of:
(a) Convergent Evolution
(b) Divergent Evolution
(c) Parallel Evolution
(d) None of these
(a) Convergent Evolution
(15) In these animals the teeth are reduced to molars without enamel or no teeth are present.
(a) Moles
(b) Bats
(c) Sloths
(d) None of these
(c) Sloths
(16) Only hind limbs are lost in:
(a) Snakes
(b) Whales
(c) Bats
(d) None of these
(b) Whales
(17) Among the following which snake is non-poisonous?
(a) Krait
(b) Python
(c) Viper
(d) None of these

(b) Python
(18) Which one is excluded from the Phylum Chordata.
(a) Urochordata
(b) Hemichordata
(c) Cephalochordata
(d) None of these

(b) Hemichordata
(19) The earliest known species of birds is:
(a) Archaeopteryx
(b) Hesperornis
(c) Ichthyornis
(d) None of these
(a) Archaeopteryx
(20) A muscular diaphragm helps to move air into and out of the lungs in:
(a) Amphibians
(b) Reptilians
(c) Avians
(d) Mammalians
(e) None of these
(d) Mammalians

Botany
(i) Enzyme Fumarase convert fumaric acid into:
(a) Citric acid
(b) Isocitric acid
(c) lactic acid
(d) Glutamic acid
(e) None of these
(ii) Plants growing under saline conditions are:
(a) Holophytes
(b) Mesophytes
(c) Hygrophytes
(d) Halophytes
(e) None of these
(iii) The first product of CO2 fixation in C3 plants is:
(a) Phosphoglyceric acid
(b) Glycolic acid
(c) Citric acid
(d) Glutamic acid
(e) None of these
(iv) Mutations are most likely to be caused by:
(a) 1AA
(b) CO2
(c) Dextrose
(d) Glycine
(e) None of these
(v) Most of the water absorption in plants takes place through:
(a) Root caps
(b) Root hairs
(c) Stomata
(d) All of these
(e) None of these
(vi) Oxygen produced during photosynthesis comes from:
(a) CO2
(b) Carboxylic acid
(c) Glucose
(d) Protein
(e) None of these
(vii) Chloroplasts in bundle sheath cells of C4 plants do not contain:
(a) Grana
(b) Stroma
(c) Thylakoids
(d) All of these
(e) None of these
(viii) A group of major biotic communities occupying a climatic region of earth is called:
(a) Biome
(b) Biosphere
(c) Biotype
(d) Phenotype
(e) None of these
(ix) In which group of plants stomata open during night:
(a) C3 plants
(b) C4 plants
(c) Halophytes
(d) CAM plants
(e) None of these
(x) The occurrence of vegetation in layers is known as:
(a) Scarification
(b) Stratification
(c) Physiognomy
(d) Pattern
(e) None of these
(xi) A plasmid is a:
(a) DNA
(b) RAN
(c) Protein
(d) Microsome
(e) None of these
(xii) The total Genetic material within a cell is:
(a) Gene bank
(b) Genetic load
(c) Genome
(d) Genetic Marker
(e) None of these
(xiii) Ribsomal RNA helps in:
(a) Replication
(b) Transcription
(c) Translation
(d) Translocation
(e) None of these
(xiv) Which one of the following ions plays most important role in stomatal movement?
(a) K+
(b) Ca++ (c) Cl–
(d) Na+
(e) None of these
(xv) Dormancy in seeds may be due to:
(a) Hard seed coat
(b) Chemical Inhibitors
(c) Immature embryo
(d) All of these
(e) None of these
(xvi) How many ATP molecules are produced when one hexose sugar molecule is converted into two molecules of pyruvic acid during glycolysis?
(a) 15
(b) 26
(c) 28
(d) 36
(e) None of these
(xvii) Open sea constituting about 90% of total ocean surface is called:
(a) Pelgaic zone
(b) Littoral zone
(c) Intertida zone
(d) Neritic zone
(e) None of these
(xviii) Which one of the following RNAs is non-genetic and brings amino acids to the site of protein synthesis?
(a) m RNA
(b) t RNA
(c) hn RNA
(d) pre-r RNA
(e) None of these
(xix) Transfer of material , from higher concentration to lower concentration across semipermeable membrane is called:
(a) Mass flow
(b) Osmosis
(c) Ascent of Sap
(d) Diffusion
(e) None of these
(xx) Optimum phosphorus uptake by roots takes place at:
(a) Neutral pH
(b) Acidic pH
(c) Alkaline pH
(d) All of these
(e) None of these

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SOLVED MCQs FOR ALL: Zoology Botany Solved MCQs.
Zoology Botany Solved MCQs.
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SOLVED MCQs FOR ALL
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