Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

5101.

Question : The plate situated between the eyes and passing below that on the head of cockroach is called :

Answer»

VERTEX
Frons
Epicranium
Gane

Answer :B
5102.

Question : The plasmid of A. tumefacien is called ________.

Answer»


ANSWER :A::D
5103.

Question : The plants which flower every year after attaining certain maturity are called

Answer»

monocarpic
polycarpic
perennials
annuals

Answer :B
5104.

Question : The plants which bears two types of spores during Sporophytic stage are known as …………

Answer»

SPORES
HETEROSPOROUS
HOMOSPOROUS
gametes

ANSWER :B
5105.

Question : The plants which bears only one kind of spores during Sporophytic stage are known as ……………

Answer»

SPORES
HETEROSPOROUS
homosporous
GAMETES

Answer :C
5106.

Question : The plants which are grown in silvopasture system are

Answer»

SESBANIA and ACACIA
Solenum and Crotalaria
Clitoria and Begonia
Teak and sandal

Solution :Sesbania and Acacia
5107.

Question : Theplants thatgrow onsalincsoildwith highconcentrationNaCI_(2) MgSO_(4) andMgCI_(2) arecalled.

Answer»

Succulents
Mesophytes
EPHEMERALS
HALOPHYTES

ANSWER :E
5108.

Question : The plants in which chromosormal basis of sex determination was seen

Answer»

Coccinia
Sphaerocarpus
Malandrium (Lychnis
All of these

ANSWER :D
5109.

Question : The plants grown in magnesium deficent but urea sprayed soil would show

Answer»

deep green foliage
early flowering
yellowing of leaves
loss of pigments in petals

Solution :NITROGEN is the constituent of amino acids, proteins, nucleic acids, nucleotides, coenzmes, hexosamines nucleic acids, nucleotides, coenzymes, hexosamines ETC. Deficiency of nitrogen rapidaly inhibits the plant growth and yellowing of the leaves (chlorosis) magnesium has the specific role in the activation of enzymes, TAKING part in photosynthesis and respiration. It ALSO FORMS a part of the ring structure of the chlorophyll molecule. Deficiency of Mg causes chlorosis i.e., yellowing of leaves.
Thus a plant growing in magnesium-deficient soil would show chlorosis inspite of being sprayed with urea (nitrogen).
5110.

Question : The plants growing in deserts to tolerate water stress, have

Answer»

no STOMATA
pneumatophores
STEM modified into leaf-like FORM

ANSWER :D
5111.

Question : The plants efficiency of N_2 absorption is promoted when the nitrogen source available in the form of

Answer»

`NO^3-`
`NO^2-`
`NH^4-`
NONE of the above

Answer :A
5112.

Question : The plant which produces highly poisonous cardiac glycosides is ?

Answer»

CACTUS
Acacia
Cototropis
Cassia

Solution :CALOTROPIS PRODUCES CARDIAC GLYCOSIDES.
5113.

Question : The plant which is used for studying hybrid vigour or heterosis is

Answer»

Maize
Pea
Datura
None of these

Answer :A
5114.

Question : The plant which have this floral diagram possesses A. Papilionaceous corolla B. Swollen placenta C. Epipetalous D. Epiphyllous condition

Answer»

A,B,C,D
A,B
B,C
C,D

Answer :C
5115.

Question : The plant triticale is a/an

Answer»

Allopolyploid
Autopolyploid
Diploid
Haploid

Answer :A
5116.

Question : The plant that does not belong to the ecological group ,represented by the other plants is ,

Answer»

Pistia
Casuarina
Jussiaea
Hydrilla

Answer :B
5117.

Question : The plant that does not have foliar buds is

Answer»

dablberigia
IPOMOEA
ARTOCARPUS
ipomoea

ANSWER :D
5118.

Question : The plant source of marijuana is ........................

Answer»

ANDROGRAPHIS paniculata
Phyllanthus maderspatensis
Cannabis sative
Papaver somniferum

Answer :C
5119.

Question : The plant of Triticum aestivum

Answer»

Haploid
Diploid
Tetraploid
Hexaploid

Answer :D
5120.

Question : The plant of this group are adapted to live partly in water and partly above substratum and free from water

Answer»

a) Xerophytes
b) MESOPHYTES
c) Hydrophytes
d) Halophytes

Solution :Mesophytes
5121.

Question :The plant most commonly used as green manure is

Answer»

DALBERGIA sissoo
Polyalthia
SESBANIA aculeata
NONE of these

ANSWER :C
5122.

Question : The plant of Cycas, which belongs to sporophytic generation, is differentiated into :

Answer»

ROOT, stem and leaves
Male and FEMALE cones
Leaves only
SOMETIMES leaves and sometimes MODIFIED stems

Answer :A
5123.

Question : The plant in which adventitious buds along the margin of leaves give rise to new plants is.a)Agaveb)Brayophyllumc)Dahliad)Water Hyacinth

Answer»

WATER Hyacinth
Agave
Brayophyllum
Dahlia

Answer :C
5124.

Question : The plant having monadelphous stamens and axile placentation is

Answer»

CHINA ROSE
Pea
Cucumber
Lemon

Answer :A
5125.

Question : The plant growth regulator involved in xylem differentiation is

Answer»

gibberllins
cytokinins
auxin
ABA

Answer :D
5126.

Question : The plant group that produces spores and embryo but lacks vasular tissues and seeds is

Answer»

Pteridophyta
Rhodophyta
Bryophyta
Phaeophyta

Solution :(c) Bryophytes consist of thalloid BODY, attached to the substratum by hair-like structures called rhizoids (true roots are absent), these lack vascular tissue (xylem and phloem) and require water at the time of fertilisation. Bryophytes exhibit ALTERNATION of generation.Thehaploid gametophyte (producing gametes for sexual reproduction)alternates with diploid sporophyte (producing SPORES for asexual reproduction).PRODUCTION of LARGE number of spores is for increasing the chances of chances of survival and is an adaptation to land conditions.
5127.

Question : The plant factor which is inversely proportional to transpiration is

Answer»

ROOT SHOOT ratio
Shoot root ratio
Stomatal frequency
Size of the leaf

Answer :B
5128.

Question : The plant extracts are sterilized by passing throughmillipore filter with _______.

Answer»

`0.22` MM PORE DIAMETER
`0.4 ` mm pore diameter
`0.2` mm pore diameter
`0.3 mm pore diameter

ANSWER :A::B::D
5129.

Question : The plant developed by parthenogenesis might be(A) only haploid(B) only diploid(C) haploid or diploid(D) triploid

Answer»

only haploid
only diploid
haploid or diploid
triploid

Answer :C
5130.

Question : The places where wild animals are kept in protected environment under human care which enable us to learn about their food habits and behaviour is called:-

Answer»

Museum
Botanical garden
Herbarium
Zoological park

Answer :D
5131.

Question : The plains characterised by snow, ice and frozen soil during most of the year are known as

Answer»

TUNDRA
CHAPPARAL
DESERT
TAIGA

ANSWER :A
5132.

Question : The placenta of human beings belong to the peripheral layer, are called

Answer»

haemochorialis
syndesmochorialis
endotheliochorialis
epitheliochorialis

ANSWER :A
5133.

Question :The place where RNA - polymerase attaches with the DNA is called :

Answer»

PROMOTER SITE
OPERATOR site
ACTIVATOR site
REPRESSOR site

Answer :A
5134.

Question : The pituitary gland secrets thyroxine hormone.

Answer»

True
False

Answer :The THYROID GLAND SECRETS THYROXINE HORMONE.
5135.

Question : The pith of B-DNA is

Answer»

`34 A^°`
`0.34nm`
`0.34 A^°`
`3.4 A^°`

ANSWER :A
5136.

Question : The piling of RBCs to form an aggregate called_____.

Answer»

Haemolysis
Haemopoeisis
Rouleaux
Anaemia

Answer :C
5137.

Question : The pigment system active in wavelengths lower than 680 nm is_____

Answer»


ANSWER :PS-II
5138.

Question : The pigment responsible for skin colour of humans is_____.

Answer»


ANSWER :TSCHERMAK
5139.

Question : The pigment molecules of a chloroplast are located within its thylakoid membranes

Answer»

the SPACE between the INNER and otuer membranes
the inner membrane
intrathylakoid spaces

Answer :A
5140.

Question : The pigment involved in preception of photoperiodic stimulus in plants is_____

Answer»


ANSWER :PHYTOCHROME
5141.

Question : The pigment that helps nitrogen fixation in root nodules of leguminous plants is________.

Answer»


ANSWER :LEGHAEMOGLOBIN
5142.

Question :The pigment Chlorophyll-a is absent in

Answer»

GYMNOSPERMS
BACTERIA
Algae
Bryophyta

Answer :B
5143.

Question : The physiology of excertion involves.

Answer»

deamination
ornithine cycle
Both (a) and (B)
NONE of these

Answer :C
5144.

Question : The physiographic factor responsible for the initiation of succession to :

Answer»

Erosion
Fire
Hail
Wind

Answer :A
5145.

Question :The physical properties of water like cohesion, adhesion and surface tension give water which of the following ability that help in ascent of xylem sap?

Answer»

Ability to RISE in thin tubes
Ability to resist a PULLING force
Both (A) and (B)
High viscous nature

Answer :C
5146.

Question : The phrase " survival fittest " was used by

Answer»

Darwin
Alferd Walface
Thomas Malthus
Herbert Spencer

Answer :D
5147.

Question : The photosynthetic unit to trap the light energy is known as

Answer»

QUANTASOME
MESOSOME
NUCLEOSOME
Oxysome

Answer :A
5148.

Question : The photomicrographs show cells in various stages of the cell cycle. Identify the stage where semi - conservative replication of DNA take place.

Answer»




ANSWER :C
5149.

Question : The photochemical phase of photosynthesis includes,(a) water splitting (b) light absorption © oxygen release (d) synthesis of NADPH (e) synthesis of starch

Answer»

Only (a) & (B)
(b), (c) & (E)
(c), (d) & (e)
All EXCEPT

ANSWER :D
5150.

Question : The phosphorus cycle is different from the carbon cycle in that :-

Answer»

Unlike CARBON cycle, there is respiration release of PHOSPHORUS into atmosphere
Atmospheric input of phosphorus through rainfull are much larger than carbon inputs
Gaseous EXCHANGE of phosphorus between ORGANISM & environment are negligible
Primary reserviour of the phosphorus cycle is the atmosphere where as the primary RESERVOIR for carbon is the rocks

Answer :C