More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
NAT II Biological Science MCQs With Answers
Question # 1
Parasexuality is a special type of genetic recombination which is showed by which group of fungi
Choose an answer
Penicillium
Imperfect fungi
Powdery mildews
Spitting fungus
Previous
Skip
Next
Question # 2
Seed of rosaceae is
Choose an answer
Edosperm
Endosperm oily
Non endosperm
None
Previous
Skip
Next
Question # 3
"In this stage the lichens are just like crumpled leaves attached at one point" about which stage we are talking
Choose an answer
Crustose lichen stage
Foliage lichen stage
Moss stage
Herbaceous stage
Previous
Skip
Next
Question # 4
The botanical name of Kala Zira is
Choose an answer
Nigella sativa
Clematyustriloba
Ranunculus aquatalis
Delphinium ajasis
Previous
Skip
Next
Question # 5
The majority of plants of this family provides edible fruits
Choose an answer
Rosaceae
Labiaceae
Ranunculaceae
Malvaceae
Previous
Skip
Next
Question # 6
Disc florets have ------------ flowers
Choose an answer
Tubular
Ligulate
Round
None
Previous
Skip
Next
Question # 7
Family labiateae is also called
Choose an answer
Lamiaceae
Labiaceae
Lambitaceae
None
Previous
Skip
Next
Question # 8
--------- is the process of ATP production in chloroplast is
Choose an answer
Photophosphorylation
Dark reaction
Calvin cycle
All
Previous
Skip
Next
Question # 9
The process in which energy migration takes place within a group of neighbouring pigments is called
Choose an answer
Reductive resonance
Deductive resonance
Inductive resonance
None
Previous
Skip
Next
Question # 10
What is the contrasting feature on the basis of which fungi are considered different from animals?
Choose an answer
Lack cellulose in their cell wall
Heterotrophs
Contains chitin
Non-motile
Previous
Skip
Next
Question # 11
Largest family of angiosperm
Choose an answer
Crucifereae
Compositeae
Ranunculaceae
Cucurbitaceae
Previous
Skip
Next
Question # 12
Males suffering from Jacobs's syndrome have sex chromosomes
Choose an answer
XXX
XO
XXY
XYY
Previous
Skip
Next
Question # 13
It includes the plants in which perianth is absent or reduced
Choose an answer
Apocarpae
Nudiflorae
Heteromarae
Glumacae
Previous
Skip
Next
Question # 14
The botanical name of date (khajoor) is
Choose an answer
Phoenix slyvestris
Cucusmucifera
Cryotaurens
Raphisruffia
Previous
Skip
Next
Question # 15
Ray florets have ------------ flowers
Choose an answer
Tubular
Ligulate
Round
None
Previous
Skip
Next
Question # 16
Which one of these is a predatory fungus?
Choose an answer
Pleurotus ostreatus
Mildews
Armillaria
Yeast
Previous
Skip
Next
Question # 17
Cytochrome 'c' found is all aerobic species is a respiratory
Choose an answer
Carbohydrate
Protein
Co-enzyme
Vitamin
Previous
Skip
Next
Question # 18
Protanopia is
Choose an answer
Green blindness
Red blindness
Yellow blindness
Blue blindness
Previous
Skip
Next
Question # 19
Following statement is in accordance to Darwinisw
Choose an answer
Natural Selection
Over Production
Survival of fittest
All of these
Previous
Skip
Next
Question # 20
Gene pool is the total aggregate of gene a ----------- at any one time.
Choose an answer
Individual
Population
DNA
Chromosome
Previous
Skip
Next
Question # 21
Fruit of Ranunculaceae is
Choose an answer
Etaerio of achenes
Capsule
Etaerio of follicles
All of these
Previous
Skip
Next
Question # 22
Locus is
Choose an answer
Segment of chromosome
Position of a gene on the chromosome
Genes present on one chromatid
Collection of genes at specific part of chromosome
Previous
Skip
Next
Question # 23
The transference of pollen grains on the stigmatic surface is brought by a special structure
Choose an answer
Polonium
Gynoestigium
Corpusculum
Translator
Previous
Skip
Next
Question # 24
A fungal hyphae having 2 nuclei of different genetic type is called as
Choose an answer
Karyogamy
Plasmogamy
Hetrokaryotic
Fragmentation
Previous
Skip
Next
Question # 25
Study of relationship of animals to their environment is termed as
Choose an answer
Ecology
Eco
System
Biotic components
Previous
Skip
Next
Question # 26
In ------------- long flowering stalk develops
Choose an answer
Parthenocarpy
Elongation
Vernalizaion
Bolting
Previous
Skip
Next
Question # 27
Bentham and Hooker divided plants in 202 orders
Choose an answer
Seeded
non-seeded
Floral
non-floral
Previous
Skip
Next
Question # 28
In Aerobic respiration, the waste product in plants is produced in the form of
Choose an answer
Uric acid
CO
2
Walter
Ammonia
Both b & c
Previous
Skip
Next
Question # 29
Fungi cause certain animal diseases. How Ringworm and athlete's foot are caused by fungi
Choose an answer
Imperfect fungi
Aspergillus fumigatus
Purple ergot
Soil contaminated with bird's feces
Previous
Skip
Next
Question # 30
The system of classification that reflects the evolution
Choose an answer
Modern
Phylogenetic
Polygenic
Natural
Previous
Skip
Next
Question # 31
The non-protein part covalently bonded to enzyme is
Choose an answer
APO-enzyme
Coenzymes
Co-factor
None
Previous
Skip
Next
Question # 32
The disease in which leaves may appear twisted and finally die is
Choose an answer
Bronzing
Whiptail disease
Whiplash disease
None
Previous
Skip
Next
Question # 33
------------ are the reaction that takes place during the light phase of photosynthesis
Choose an answer
Kelvin cycle
Photo-reaction
Hill's reaction
All
Previous
Skip
Next
Question # 34
Leaves of ---------- are used for the treatment of asthma
Choose an answer
Datura
Lyecium
Atropa
Solanum
Previous
Skip
Next
Question # 35
Cucumissativusis the botanical name of
Choose an answer
Bitter gourd
Vegetable marrow
Cucumber
Watermelon
Previous
Skip
Next
Question # 36
Why molds can grow on oranges and jelly kept in refrigerator where generally bacteria cannot reach
Choose an answer
They are well adapted to live on land
Hyphae are modified
They can tolerate temperature extremes minus 5 degree centigrade below freezing and 50 degree centigrade or more
They have rhizoids
Previous
Skip
Next
Question # 37
Plants of family asclepiadaceae are used to treat
Choose an answer
Gastric disorders
Skin disorders
Maternal disorders
None of these
Previous
Skip
Next
Question # 38
The water culture technique for growing plants with their roots in a recirculating water solution is
Choose an answer
Hydroponics
Sericulture
Hygoculture
Hydroculture
Previous
Skip
Next
Question # 39
Stephen Endlicher classified plants into two major groups
Choose an answer
Thalophytes and pteridophytes
Thalophytes and carmophytes
Bryophytes and pteridophytes
Angiosperms and ghmnosperms
Previous
Skip
Next
Question # 40
The criteria of the classification are the ------------ on which the classification is based.
Choose an answer
Groups
Divisions
Characters
Orders
Previous
Skip
Next
Question # 41
An organism that is caught and eaten is called
Choose an answer
Predator
Prey
Ectoparasites
Endoparasites
Previous
Skip
Next
Question # 42
Most polychaetes are
Choose an answer
Monoecious.
Dioecious.
Protandric.
Asexual.
Previous
Skip
Next
Question # 43
All of the following mollusc characters would be found in a member of the class Bivalvia except one. Select the exception.
Choose an answer
Visceral mass
head-foot
mantle cavity
radula
Previous
Skip
Next
Question # 44
Triploblastic is the characteristic of phylum
Choose an answer
Nematoda
Nemerteans
Platyhelminths
Annelida
Previous
Skip
Next
Question # 45
Which one of the following do not lie in phylum ciliophora?
Choose an answer
Paramyxa
Vorticella
Paramecium
Balantidium
Previous
Skip
Next
Question # 46
The arrangement of structures in fives around a radial animal is called
Choose an answer
Bilateral symmetry
Radial Symmetry
Pentaradial Symmetry
Asymmetr
Previous
Skip
Next
Question # 47
Phylum Rotifera consist of --------- classes.
Choose an answer
two
three
four
five
Previous
Skip
Next
Question # 48
Which of the following is not an external feature of a rotifer?
Choose an answer
cilia
corona
germovitellarium
foot
Previous
Skip
Next
Question # 49
Polymorphism is characteristic of phylum
Choose an answer
phylum Nematoda
phylum Annelida
phylum Cnidaria
None of above
Previous
Skip
Next
Question # 50
In phytomastigophorean each chloroplast has a structure -------------- which stores and synthesizes polysaccharides.
Choose an answer
Stigma
Pyrenoid
Euglenoid
None of above
Previous
Skip
Next
Question # 51
Water exits the mantle cavity of a bivalve through the ------------ and the excurrent opening
Choose an answer
water tube
incurrent opening
suprabranchial chamber
pericardial cavity
Previous
Skip
Next
Question # 52
The main propulsive structure(s) in the circulatory system of an earthworm is (are)
Choose an answer
Hearts
Dorsal and ventral blood vessels
Seminal vesicles
The typhlosole.
Previous
Skip
Next
Question # 53
Animals of phylum cnidaria are
Choose an answer
Diploblastic
Triploblastic
None of above
Previous
Skip
Next
Question # 54
No free living larval forms occur in the annelid subclass(es)
Choose an answer
Hirudinea
IIirudinea and Oligochaeta
Polychaeta
Polychaeta and Oligochaeta
Previous
Skip
Next
Question # 55
Earthworms belong to the annelid subclass
Choose an answer
Hirudinea.
Chaetognatha.
Polychaeta.
Oligochaeta.
Previous
Skip
Next
Question # 56
Ascaris lumbricoides is commonly known as the giant intestinal roundworm of humans.
Choose an answer
True
False
none of the above
Previous
Skip
Next
Question # 57
The molluscs are most closely related to the
Choose an answer
Annelids
Enhinoderms
Arthropods.
Chordates
Previous
Skip
Next
Question # 58
------------ gave rise to the kingdom protista
Choose an answer
Viruses
Archaea
bacteria
None of above
Previous
Skip
Next
Question # 59
--------------- are the characters that have arisen since common ancestory with the group
Choose an answer
Homologous characters
Derived characters
Synapomorphies
Both B and C
Previous
Skip
Next
Question # 60
The aschelminthis contain organs for gas exchange and circulation.
Choose an answer
True
False
none of the above
Previous
Skip
Next
Question # 61
The excretory product in protozoa is primarily
Choose an answer
Urea
Ammonia
Uric acid
None of these
Previous
Skip
Next
Question # 62
Which one of the following do not lie in phylum Cnidaria?
Choose an answer
obelia
aurelia
Actinia
Taenia
Previous
Skip
Next
Question # 63
All are the characteristics of phylum cnidaria except
Choose an answer
Presence of mesoglea
Contain mesenchyme
gastrovascular cavity
contain nematocysts
Previous
Skip
Next
Question # 64
The approach which makes hypothesis of geneological relationships among monophyletic groups of organisms is
Choose an answer
evolutionary systematic
Phylogenetic systematic
Numarical taxonomy
Both A and C
Previous
Skip
Next
Question # 65
The scientific name of the common pinworm is
Choose an answer
Ascaris lumbricoides.
Enterobius vermicularis
Trichinella spiralis.
Wuchereria bancrofti
Previous
Skip
Next
Question # 66
A regular arrangement of microtubules called --------- underlies the plasma membrane of many protozoa
Choose an answer
Pellicle
mesosomes
peroxisomes
Both A and B are correct
Previous
Skip
Next
Question # 67
All are the characteristics of phylum Apicomplexa except------------------
Choose an answer
Single type of nucleus
Have resistant spores
Apical complex for penetrating host cells
No cilia and flagella
Previous
Skip
Next
Question # 68
Presence of metameric segmentation
Choose an answer
Lumbricus
Daphnia
Arenicola
Both A and C are correct
Previous
Skip
Next
Question # 69
Intermediate host for fish tape worm is
Choose an answer
Pig
Copepod
Snail
Humans
Previous
Skip
Next
Question # 70
Subkingdom protozoa consist of --------- separate phyla within the kingdom protista.
Choose an answer
Eight
Six
Five
Seven
Previous
Skip
Next
Question # 71
Which of the following is true of the mantel cavity of a bivalve?
Choose an answer
It is the area where water circulates during feeding and gas exchange
It is the space between the mantle and the shell
It is the space between the pericardium and the heart
It is the space where blood circulates before being returned to the heart
Previous
Skip
Next
Question # 72
A distinctive feature of members of the subclass Hirudinea is
Choose an answer
Parapodia.
Tentacles.
Anterior and Posterior suckers.
Palps.
Previous
Skip
Next
Question # 73
Which of the following is a distinct feature that occurs in all pseudocoelomate phyla?
Choose an answer
pseudocoelom
adhesive glands
cuticle
none of the above
Previous
Skip
Next
Question # 74
Members of the class Monoplacophora are wormlike molluscs that lack a shell, crystalline style, and foot; they live in vertical burrows on the deep-sea floor.
Choose an answer
True
False
None of Above
Previous
Skip
Next
Question # 75
Which of the following is not a common feature of aschelminth?
Choose an answer
incomplete digestive tract
a muscular pharynx
constant cell numbers (eutely)
adhesive glands
Previous
Skip
Next
Question # 76
A distinctive feature of members of the class Polychaeta is
Choose an answer
Parapodia.
Clitellum.
Annuli.
Absence of setae.
Previous
Skip
Next
Question # 77
------------- harbours the sexual stages of the parasite
Choose an answer
Intermediate host
Definitive host
None of above
Previous
Skip
Next
Question # 78
The absence of a shell in the aplacophora is a primitive character in the phylum Mollusca
Choose an answer
True
False
None of Above
Previous
Skip
Next
Question # 79
Which of the following is true of the radula of most molluscs?
Choose an answer
It is used in reproduction
It is used in excretion
It is used in rasping food
It is used in gas exchange
Previous
Skip
Next
Question # 80
Of the following, which is the most recently described pseudocoelomate animal phylum?
Choose an answer
Pariapulida
Acanthocephala
Loricifera
Nematomorpha
Previous
Skip
Next
Question # 81
Members of the class Polyplacophora include the chitons, which are found on hard substrates in marine habitats.
Choose an answer
True
False
None of above
Previous
Skip
Next
Question # 82
The scientist who describe a system of classification that distinguished between kingdoms according to cellular organization and mode of nutrition was
Choose an answer
R. M. Kristensen
Carolus Linnaeus
Rebert II. Whittaker
None of above
Previous
Skip
Next
Back