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PPSC Lecturer Recruitment 2015 Zoology Important Mcqs from Past Papers for Lecturer Test Preparation 2015

PPSC Lecturer Recruitment 2015 Zoology  Important  Mcqs from Past Papers for Lecturer Test Preparation 2015

Contractile vacuole in Protozoa is basically concerned with:
(a) Excretion
(b) Osmoregulation
(c) Respiration
(d) None of these

(b) Osmoregulation

(2) Gammules are produced in:
(a) Annelida
(b) Arthropoda
(c) Porifera
(d) None of these

(c) Porifera

(3) Scales in Reptiles originate from:
(a) Ectoderm
(b) Mesoderm
(c) Endoderm
(d) None of these

(a) Ectoderm

(4) The Chordates are dissected from:
(a) Dorsal side
(b) Ventral side
(c) Lateral side
(d) Both (a) and (b)
(e) None of these

(b) Ventral side

(5) Open type of blood vascular system is present in:
(a) Echinoderms
(b) Chordates
(c) Molluses
(d) None of these

(c) Molluses

(6) Frog has the following number of Neck Vertebrae:
(a) Seven
(b) Nine
(c) Four
(d) Zero
(e) None of these

(b) Nine

(7) Insects have not adapted to the environment:
(a) Aquatic
(b) Fresh water
(c) Marine
(d) None of these

(a) Aquatic

(8) The true jaw is not present in:
(a) Elasmobranchs
(b) Boney Fish
(c) Agnatha
(d) None of these

(c) Agnatha

(9) Sea Horse is included in:
(a) Pisces
(b) Mammals
(c) Insects
(d) Mollusca
(e) None of these

(a) Pisces

(10) A house fly has the following number of legs:
(a) Four
(b) Eight
(c) Six
(d) None of these

The main division of the chromosomes occurs in:
(a) Prophase
(b) Metaphase
(c) Anaphase
(d) Jelophase
(e) None of these

(c) Anaphase

(2) The protein synthesis occurs in:
(a) Mitochondria
(b) Endoplasmic reticulum
(c) Ribosomes
(d) Acrosome
(e) None of these

(c) Ribosomes

(3) Blood antigens are present in:
(a) Blood serum
(b) RBC’s
(c) WBC’s
(d) Platelets
(e) None of these

(b) RBC’s

(4) Sex linked genes are the genes located on:
(a) X-chromosome only
(b) Y-chromosome only
(c) Both X and Y-chromosomes
(d) X or Y-chromosomes
(e) None of these

(a) X-chromosome only

(5) Transcription is the phenomenon associated with:
(a) Synthesis of new DNA
(b) Formation of mRNA and DNA
(c) Formation of tRNA
(d) None of these

(d) None of these

(6) Segregation of alleles of a gene occurs in:
(a) Diploid individual
(b) Homozygous individual
(c) Heterozygous individual
(d) All of the above
(e) None of these

(a) Diploid individual

(7) Sodium-Potassium pump is located in:
(a) Liver
(b) Heart Cell
(c) Nerve cell
(d) All of the above
(e) None of these
(d) All of the above

(8) Pepsin is an enzyme responsible for breaking:
(a) Proteins
(b) Lipids
(c) Fats
(d) None of these

(a) Proteins

(9) Pace maker is located in:
(a) Liver
(b) Brain
(c) Heart
(d) Muscle
(e) None of these

(c) Heart

(10) Follicle stimulating hormones are produced in:
(a) Pituitary
(b) Ovaries
(c) Thyroid
(d) Kidney
(e) None of these

(a) Pituitary

(11) Genetic dominance is strongly associated with:
(a) Personality dominance
(b) Adaptive value
(c) Population distribution
(d) None of these

(c) Population distribution

(12) Crossing over is the physical exchange between chromosomes.
(a) Homologous
(b) Non-Homologous
(c) Both (a) and (b)
(d) None of these

(a) Homologous

(13) XXY individual in man is phenotypically a:
(a) Male
(b) Female
(c) Inter sex
(d) None of these

(a) Male

(14) Amino acids are the organic compound behaving like:
(a) Acid
(b) Base
(c) Both (a) and (b)
(d) None of these

(c) Both (a) and (b)

(15) Which of these can be the first living organism on the earth:
(a) Protozoan
(b) Algae
(c) Virus
(d) None of these

(d) None of these

(16) Ontogeny represents the history of an organism.
(a) Revolutionary
(b) Embryonic
(c) Both (a) and (b)
(d) None of these

(b) Embryonic

(17) Nuclear membrane has a structure similar to:
(a) Cell membrane
(b) Mitochondrion
(c) Endoplasmic reticulum
(d) All of these

(d) All of these

(18) Osmosis is the movement of solutes through a membrane.
(a) Permeable
(b) Semi-permeable
(c) Both (a) and (b)
(d) None of these

(b) Semi-permeable

(19) Sickle Cell Anemia is the condition where the RBC’s deflate.
(a) Under Oxygen
(b) Absence of Oxygen
(c) Both (a) and (b)
(d) None of these

(b) Absence of Oxygen

(20) Pond is an example of ecosystem:
(a) Complete
(b) Incomplete
(c) Almost complete
(d) None of these

(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
1) “Chiasma” formation could be seen first time in the following stage/sub stage of Meiosis:
(a) Leptotene
(b) Zygotene
(c) Pachytene
(d) Diplotene
(e) None of these

(b) Zygotene

(2) In protein synthesis each triplet code binds itself with one:
(a) Leptotene
(b) Zygotene
(c) Diplotene
(d) None of these

(b) Zygotene

(3) For the rapid production of antibody in the precipitate test involving a rabbit one of the following animals could be used.
(a) Frog
(b) Lizard
(c) Fowl
(d) None of these

(c) Fowl

(4) In Drosophila very rarely father transmit his sex-linked trait to his normal son (in a cross of white eyed female with red eyed male):
(a) In the case of primary non-disjunction
(b) In the case of secondary non-disjunction
(c) In the case of a normal cross
(d) None of these

(5) 13:3 Ration in “F2” is obtained in the case of:
(a) Complementary genes for colours in corn
(b) Coat colours in rodents
(c) In epistatic genes
(d) None of these

(a) Complementary genes for colours in corn

(6) Crossing over rarely or never takes place in the male of:
(a) Mice
(b) Poultry
(c) Man
(d) Drosophila
(e) None of these

(d) Drosophila

(7) XXY individual in Drosophila is phenotypically:
(a) Male
(b) Female
(c) Inter sex
(d) None of these

(a) Male

(8) Fossils of which of these first living organisms were found?
(a) Protozoan
(b) Algea
(c) Virus
(d) None of these

(a) Protozoan

(9) Which of these are exclusively functional proteins?
(a) Hormones
(b) Enzyme
(c) Plasma
(d) None of these

(b) Enzyme

(10) Phytogeny represents the history of an organism:
(a) Evolutionary
(b) Embryonic
(c) Both ‘a’ and ‘b’
(d) None of these

(a) Evolutionary

(11) Sickle Cell trait is found in:
(a) Homozygous
(b) Heterozygous
(c) Both ‘a’ and ‘b’
(d) None of these

(b) Heterozygous

(12) The first living and respiring organism on earth were:
(a) Aerobes
(b) Anaerobes
(c) Both ‘a’ and ‘b’
(d) None of these

(b) Anaerobes

(13) The major portion of digestion takes place in the:
(a) Stomach
(b) In the small intestine
(c) In the large intestine
(d) None of these

(b) In the small intestine

(14) Practically all absorption of digested food occurs in:
(a) Large intestine
(b) Small intestine
(c) Both ‘a’ and ‘b’
(d) None of these

(b) Small intestine

(15) Sibling species are produced as a result of:
(a) Allopatric speciation
(b) Sympatric speciation
(c) Both ‘a’ and ‘b’
(d) None of these

Allopatric speciation

(16) In the days just after its formation the earth had:
(a) Reducing atmosphere
(b) Oxidative atmosphere
(c) Both ‘a’ and ‘b’
(d) None of these

(a) Reducing atmosphere

(17) Zygotes containing “XY” are females in:
(a) Drosophila
(b) In moths
(c) In grasshoppers
(d) None of these

(a) Drosophila

(18) The “Y” Chromosomes is sexually neutral in:
(a) Man
(b) In Drosophila
(c) In moth
(d) None of these

(d) None of these

(19) Marsupial are found in:
(a) Only Australian region
(b) In near arctic and Neotropical regions
(c) Both ‘a’ and ‘b’
(d) None of these

(d) None of these

(20) In which stage of Meiosis Cento mere of each dyad divides?
(a) Metaphase I
(b) Metaphase II
(c) Anaphase I
(d) Anaphase II
(e) None of these

(b) Metaphase II

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