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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.

22501.

Question : Aestivaton in the flower of Calotropis is

Answer»

TWISTED
Imbricate
Valvate
Vexillary

Answer :C
22502.

Question : Aestivation is the mode of arrangement of

Answer»

ANDROECIUM or GYNOECIUM in a FLORAL bud
Androecium or CALYX in a floral bud
COROLLA or Gynoecium in a floral bud
Calyx or Corolla in a floral bud

Answer :D
22503.

Question : Aestivation in which members of a whorl lie close but do not overlap is

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VEXILLARY
Valvate
IMBRICATE
TWISTED

ANSWER :B
22504.

Question : Aerobic respiration produces energy about____times than in anaerobic respiration.

Answer»


ANSWER :EIGHTEEN
22505.

Question : Aerobic bacteria are found in :

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Activated SLUDGE SEDIMENT in settlement tanks of sewage treatment plant
Stomach of ruminants are produce methane
BIOGAS plant and produce biogas
both (A) and (B)

ANSWER :A
22506.

Question : Name the aerating pores present on the surface of woody stems.

Answer»


ANSWER :LENTICEL
22507.

Question : Aedes mosquito is a vector of:

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Malaria
Filariasis
CHOLERA
Dengue

Answer :D
22508.

Question : Aedes aegypti is the vector for :

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Dengue FEVER
YELLOW fever
Both (a) & (B)
Japanese encephalitis

Answer :C
22509.

Question : Aedes aegypti is a vector for

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Both DENGUE and YELLOW FEVER
Dengue fever
Yellow fever
Japanese ENCEPHALITIS

SOLUTION :Both dengue and yellow fever
22510.

Question : Adventive embryos produced in citrus plant

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Have higher genetic variability
Produce PROGENY identical to the parent
Are less viable
Produce offsprings with high hybrid vigour

Solution :Factors do not show any BLENDING and both the traits are recovered in `F_2` GENERATION , EXPLAINS the LAW of segregation
22511.

Question : adventitious roots develop from

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epidermis
pericycle or interfascicular parenchyma
cortex
endodermis

ANSWER :B
22512.

Question : Adventitious buds in roots and leaves help in vegetative reproduction of _____ and ____plants respectively

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ADIANTUM and Kalanchoe
Begonia and CENTURY plant
Dahlia and WALKING fern
Dahlia and Ananas

Answer :C
22513.

Question : Adventitions buds on roots are seen in …………. .

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Ipomoea
Pistia
Strawberry
Agave

Answer :A
22514.

Question :Advantage of cleistogamy is :

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More VIGOROUS offspring
No DEPENDENCE on pollinators
Vivipary
Higher GENETIC variability

Answer :B
22515.

Question : Advancement in automating DNA sequencing and development in computer programming, made the DNA sequencing of larger genomes a real possibility during the mid of

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1970.s
1960.s
1990.s
1980.s

Answer :D
22516.

Question : Advancement in genetic engineering has been possible due to discovery of

Answer»

Transposons
ENDONUCLEASES
EXONUCLEASES
ONCOGENES

SOLUTION :Endonucleases
22517.

Question : Advanced laboratory facilities for DNA fingerprinting in India is at

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ICAR, New DELHI
NBPGR, New Delhi
CSIR, New Delhi
CCMB, Hyderabad

SOLUTION :CCMB, Hyderabad
22518.

Question : The adult gametophyte of moss is called____________.

Answer»


ANSWER :Gametophore
22519.

Question : Adult human RBCs are enucleate. Which of the following statement (s)/are not most appropriate explanation for this feature? a) they do not need to reproduce b) they are somatic cells c) They do not metabolize d) All their internal space is available for oxygen transport

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only (d)
Only (a)
(a), (C) and (d)
(B) and (c)

ANSWER :A
22520.

Question : Adult animal cell that does not divide is

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SKIN CELL
Hair cell
STEM cell
Nerve cell

ANSWER :D
22521.

Question : Adrenalin direct affect on : -

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S.A. Node
`BETA`-cells of Langerhans
Dorsal ROOT of SPINAL cord
Epithelial cells of stomach

Answer :A
22522.

Question : Adjustment of invaders to the new environment is called _____ .

Answer»


ANSWER :ECESIS
22523.

Question : Adjacent plant cells are connected by protoplasmic strands called gap junctions.

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True
False

Answer :Plasmodesmta
22524.

Question : Adjacent tracheids and vessels can transfer sap through thin areas in their walls called

Answer»

Plasmodesmata
Gap junctions
Tight junctions
Pits

Answer :D
22525.

Question : Adjacent epithelial cells are held together by means of

Answer»

Liposomes
Glyoxysomes
Desmosomes
Microsomes

Answer :C
22526.

Question : (a)Different between analogous and hmologos structures (b) Select and write analogous structures from the lost given below : (i)wings of butterfly and birds (ii) vertebrate hearts (iii) Tendrils of bougain villea and cucurbita (iv) Tubers of sweet potota and potato.

Answer»

Solution :
(b)FOLLOWING are the analogous structure form the GIVEN lists:
(i) Wings of butterfly and BIRDS ,(ii) Tubers of SWEET potato and potato
22527.

Question : a.Differentkindsof pollutionsare listed in column A of thefollowingtable . Choosethe appropriatecontrol measures from the list provided and fill up column B of the table : (Lead panellingof wallsand useof protectiveaprons , Electrostaticprecipitators , incineration and pyrolysis , ozonization , plantingtrees andhedges). b. In 1995,Nobel Prize of chemistrywas awarded to Shewood Rowland,Mario Molina and Paul Curtzen in recognition of theircontribution to enviromentscience. Amongthe following, select thosetermsthat are related to theirresearch work. [Carbon monoxide (CO), Ozone (O_(3)) , Carbon dioxide (CO_(2)) , Methane (CH_(4)) , Photochemical smo, Nitrousoxide (N_(2)O) , Sulphur dioxide (SO_(2)) Chlorofluorocarbons (CFCs).

Answer»

Solution :a.
B. OZONE , methane, NITROUS OXIDE CFC.s.
22528.

Question : Adhesion and cohesion of stamens is observed in ____ and ____ flowers, respectively

Answer»

LILY and brinjal
Pea and brinjal
China ROSE and brinjal
Brinjal and pea

Answer :D
22529.

Question : Adhering junctions are molecular pipe lines.

Answer»


ANSWER :GAP JUNCTIONS
22530.

Question : Adeventive embryony in Citrus due to :

Answer»

Nucellus
Integuments
Zygotic embryogenesis
Fertillzed egg

Answer :A
22531.

Question : Adernal hormone _____ accelerates the hearts beats under normal conditions.

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ANSWER :Non-adrenalin
22532.

Question : Adequate wastemanagementis anenvironmentissueto considered Discuss the advantages of Eco -santoilet .

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SOLUTION :Itis asustainablesystemfor handlinghumanexcreta,usingdrycompostingtoilets . Thisa PRACTICAL,Hygenic ,effcientandcost -effectivesolutionto HUMAN WASTE disposal .
22533.

Question : Adenosine deaminase deficiency can be permanetly cured by which of the following methods ?

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Bone marrow transplantation
Enzyme replacement therapy
Gene therapy at EARLY embryonic stages
All of these

Solution :Adenosine DEAMINASE (ADA) deficiency can be treated by bone marrow transplantion, or by enzyme replacement therapy, in which FUNCTIONA, ADA is given to the patient by INJECTION. But permanent treatment can be done by introduction of gene isolated from bone marrow cells, which produces ADA, into the cells of the patient at early embryonic stage.
22534.

Question : Adrenaline directly affect on

Answer»

S.A.node
Purkinje fibres
Chrodae tendineae
Bachmann bundle

Answer :A
22535.

Question : Adenosine deaminase (ADA) deficiency is a hereditary disease, where ADA, which is crucial for functioning of immune system is absent. Ex plain how ADA deficiency can be treated.

Answer»

Solution :ADA deficiency can be treated using BONE marrow transplantation or by enzyme therapy. In gene therapy, lymphocytes from the blood of the patient are grown in a 198 CULTURE outside the body. A functional ADA cDNA is then introduced into lymphocytes and returned BACK to patient.
22536.

Question : Adenohypophysis and Neurohypophysis.

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SOLUTION :
22537.

Question : Adeno virus, a bacteriophage causes:

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GASTRIC disorder
Respiratory infection
Fermentation
BOTH (A) AND (B)

ANSWER :B
22538.

Question : Adelphoparasitism.

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SOLUTION :Adelphoparasitim is an interaction in which the boat SPECIES is CLOSELY realated to the PARASITE such as member of the same family or GENUS.
22539.

Question : Addition of which substances in water does not stimulate the growth of micro-organisms and aquatic vegetation ?

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AMMONIA, NITRATES, nitrites
Ammonia, PHOSPHOROUS, detergents 
Nitrites, Potassium, ammonia
None of these 

Answer :C
22540.

Question : Addition of two individual pairs of chromosomes to a diploid set _____

Answer»

SOLUTION :DOUBLE TETRASOMY
22541.

Question : Addition of phosphates and nitrates rich fertilisers into water leads to

Answer»

INCREASED GROWTH of decomposers
Reduced ALGAL growth
Increased algal growth
Nutrient ENRICHMENT,i.e. eutrophication

Answer :D
22542.

Question : Addition LSD leads to :

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Hallucination
Damage to kidney
Mental and emotional disturbance
Damage to LUNGS

ANSWER :C
22543.

Question : Adaptive radiation or divergent evolution

Answer»

Solution :It REPRESENTS evolution of new FORMS in several directions from the COMMON ancestral type (DIVERGENCE).
22544.

Question : Addison's disease is due to the

Answer»

HYPERTROPHY of ADRENAL CORTEX
Hyperophy of thyroid
Atrophy of adrenal coretx
Atrophy of thyroid

Answer :C
22545.

Question : Adaptive radiation refers to

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evolution of different species from a COMMON ancestor
migration of MEMBERS of a species to different geographical areas
power of adaptation in an individual to a VARIETY of environments
adaptations due to geographical isolation.

SOLUTION :evolution of different species from a common ancestor
22546.

Question : Addiction to alcohol causes

Answer»

CIRRHOSIS
Epilepsy
Neurosis
PSYCHOSIS

SOLUTION :Cirrhosis
22547.

Question : Adaptiveradiation refers to :

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POWER of adaptation in an individual to avariety of environments
ADAPTATIONS due togeographical isolation
EVOLUTION of differentspecies from acommon ancestor
Migration of members ofa SPECIES to DIFFERENT geographical area

Answer :C
22548.

Question : Adaptations for running are called …….. Adaptations.

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cursorial
fossorial
volant
arboreal

Answer :A
22549.

Question : Adaptations may be morophological, physiological or behavioural.Write the behavioural adaptations in desert lizard.

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Solution :Desert LIZARDS bask in the SUN and absorb heat when their body temperature DROPS below the comfort ZONE They move into shead when the temperature STARTS increasing.
22550.

Question : Adaptations are the attributes of the organism that enables it to survive and reproduce in its habitat. Give the adaptations of :Seals in polar region.

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Solution :In the polar seas aquatic mammals like seals have a THICK layer of fat (blubber) below their SKIN that acts as an INSULATOR and REDUCES LOSS body heat.