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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.

11901.

Question : Mating of closely related animals.

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Solution :1. Male Donkey-Female Horse-Mule
2. Male Horse - Female donkey - HINNY
3. Male lion - female tiger-Liger
4. Male tiger - Female lion - TIGON
Discussion
11902.

Question : Show the structure of a renal capsule with the help of a diagram.

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SOLUTION :
Discussion
11903.

Question : Give the names of diseases cause due to disorder of digestive tract.

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Solution :Causes : The inflammation of the intestinal tract is the most COMMON ailment due to bacterial or viral infections. The infections are also caused by the parasites of the intestine like tape worm, round worm, thread worm, hook worm, pin worm etc.
Diseases caused due to disorders of digestive tract:
(i) Jaundice : The liver is affected, skin and eyes turn yellow due to the deposit of bile pigments.
(ii) Vomiting : It is the ejection of stomach contents through the mouth. The reflex action is controlled by the vomit centre in the medulla. A feeling of nausea proceeds vomiting.
(iii) Diarrhoea : The abnormal frequency of bowel movement and increased liquidity of the FAECAL DISCHARGE is KNOWN as diarrhoea. It reduces the absorption of food.
(iv) Constipation : In constipation the faeces are retained within the rectum as the bowel movements occur irregularly.
(v) Indigestion : In this condition the food is not properly digested leading to a feeling of fullness. The causes of indigestion are inadequate enzyme secretion, ANXIETY, food poisoning, over eating and spicy food.
Discussion
11904.

Question : Show the K^(+) transport theory of opening of stomata with diagram.

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SOLUTION :
Discussion
11905.

Question : Show supramolecular complexes in the form of well labelled diagram only of thylakoid membranes in chloroplast.

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SOLUTION :
Discussion
11906.

Question : Show composition, structure and type of chromosomes.

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Solution :Chromatin contains DNA and some basic proteins called HISTONES, some non histone proteins and also RNA. A single human cell has approximately two metra long THREAD of DNA distributed among its forty six chromosomes. (23 pairs)
Every chromosome essentially has a primary CONSTRICTION or the centromere on the sides of which disc shaped structures called kinetochores are present.

Based on the position of the centromere, the chromosomes can be classified into FOUR types :

Metacentric : The metacentric chromosome has middle centromere forming two equal arms of the chromosome.
Sub-metacentric : The sub-metacentric chromosome has centromere slightly away from the middle of the chromosome resulting into one shorter arm and one longer arm.
Acrocentric : In case of acrocentric chromosome the centromere is situated CLOSE to its end forming one extremely short and one very long arm.
Telocentric : Telocentric chromosome has a terminal centromere.
Discussion
11907.

Question : Show the diagramatic representation of exchange of gases between alveoli and blood.

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SOLUTION :
Discussion
11908.

Question : Shoulder joint, toe joint, ankle joint, intervertebral joint.

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ANSWER :INTERVERTEBRAL JOINTS
Discussion
11909.

Question : Should field crops be fertilized during times of drought?

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SOLUTION :No: PLANTS will WILT DUE to EXOSMOSIS
Discussion
11910.

Question : Short, constricted region in the chromosome is

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Kinetochore
CENTROMERE
Satellite
Telomere

Solution :Centromere
Discussion
11911.

Question : Shoot apex changes its activity in reproductive phase.

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ANSWER :TRUE
Discussion
11912.

Question :Shoot apex is subterminal in position because it is coveredby leaf primordia.

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ANSWER :FALSE
Discussion
11913.

Question : Shoot apex and root apex

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SOLUTION :The shoot apex is the terminal MERISTEM of the shoot. Histologically, it is that part of the shoot which lies immediately above the uppermost leaf primordium whereas the root apex is sub-terminal in position and is ENCLOSED partly by a root cap. The root apex produces cells towards the axis and also away from it to initiate root cap. Moreover, the root apex is not ASSOCIATED with theformation of lateral appendages.
Discussion
11914.

Question : Shiwalik fossil park is located at …………………………. .

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Madhya PRADESH
HIMACHAL Pradesh
RAJMAHAL hills
Jharkhand

Answer :B
Discussion
11915.

Question : Shiv ram kashyap has done a lot of work on ………….

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PTERIDOPHYTES
BRYOPHYTES
Algae
Fungi

Answer :B
Discussion
11916.

Question : Shellfish taken from water during a red tide would be

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POISONED with NEUROTOXIN
RICH in porteins
dead
rich in minerals

Answer :A
Discussion
11917.

Question : Shell coiling in Limnaea exhibits _______ inheritance.

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ANSWER :EXTRA chromosomal/Cytoplasmic
Discussion
11918.

Question : Sheathing leaf bases of grasses is mainly due to activity of

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APICAL MERISTEM
LATERAL meristem
Intercalary
Promeristem

Answer :C
Discussion
11919.

Question : Sharks body is coveredby

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cosmoid SCALES
placoid scales
CYCLOID scales
ctenoid scales

ANSWER :B
Discussion
11920.

Question : In Shark, mouth and nares are

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VENTRAL and dorsal
terminal and dorsal
both ventral
dorsal and ventral

Answer :T
Discussion
11921.

Question : Sharks:

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lack BONY skeletons
have placoid scales
have TEETH derived from EPIDERMAL scales
all of the above are CORRECT

Answer :D
Discussion
11922.

Question : Sharks and bony fish are different in that only :

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BONY fish have PAIRED FINS
bony fish have an operculum
sharks have a bony skeleton
sharks are predaceous

SOLUTION :bony fish have an operculum
Discussion
11923.

Question : Shape to the ribosomes is provided by _____

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RRNA
tRNA
mRNA
DNA

Solution :rRNA
Discussion
11924.

Question : Shape of prokaryotic chromosome is

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ROD shape
Circular
L shape
Sac like

Answer :B
Discussion
11925.

Question : Shape of perithecium is ………………..

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CUP shaped
flask shaped
completely closed
OPEN TYPE

ANSWER :B
Discussion
11926.

Question :Shaking the seeds vigorously to remove the plug in the microphyle is the method of .......

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STRATIFICATION
IMPACTION
SCARIFICATION
EMACIATION

SOLUTION :Impaction
Discussion
11927.

Question : Sexually, earthworms are

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SEXES are separate
Hermaphroditic but not self-fertilizing
Hermaphroditic and self-fertilizing
Parthenogenic

ANSWER :B
Discussion
11928.

Question : Which of the following classification is a sexual system of classification?

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NATURAL SYSTEM
ARTIFICAL system
PHYLOGENETIC
APG system

Solution :Artifical system
Discussion
11929.

Question :Sexual system of classification proposed by Linnacus is an example for

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SYNTHETIC SYSTEM
PHYLOGENETIC system
NATURAL system
ARTIFICIAL system

Answer :D
Discussion
11930.

Question : Sexual reproduction is of oogamous type in bryophytes .

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Solution :In oogamous type of reproduction MALE gamete is smalll and MOTILE female gamete is LARGE and non -motile.
Discussion
11931.

Question : Sexual reproduction of bryophytes involves the production of

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sperms
biflagellate antherozoids
antheroids
cilliate antherozooids

Answer :(B)
Discussion
11932.

Question : State whether the following statements are true or false.Sexual reproduction is of oogamous type in all bryophytes.A. True B. False

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ANSWER :TRUE
Discussion
11933.

Question : Sexual reproduction in which DNA of bacteria is transferred to another by the help of bacteriophage is

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TRANSFORMATION
transduction
transcription
CONJUGATION

ANSWER :B
Discussion
11934.

Question : Sexual reproduction in Ulothrix is

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Isogamous
Anisogamous
Oogamous
All of the above

Solution :SEXUAL REPRODUCTION in ULOTHRIX is isogamous.
Discussion
11935.

Question : Sexual reproduction in fungi in which flagel-lated gametes differentiate and fuse is known as

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spermatogamy
planogametic copulation
gametangial copulation
gametangial contact

Answer :B
Discussion
11936.

Question : Sexual cycle in fungi involves

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PLASMOGAMY
KARYOGAMY
Meiosis
All the above

Answer :D
Discussion
11937.

Question : Sexual dimorphism is seen in ………………….. .

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SYCON
HYDRA
LIVER fukes
ASCARIS

SOLUTION :Ascaris
Discussion
11938.

Question : Sexual behaviour and expression of emotional reactions is regulated by

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MID brain 
HIND brain 
Forebrain 
CORPORA QUADRIGEMINAL 

Answer :C
Discussion
11939.

Question : Sex organs in Funaria develop

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in protonema
outside capsule
in the AXIL of leaf
at the TIP of gametophore

Answer :D
Discussion
11940.

Question : Sex organs are found on specialized sexual receptacles called antheridiophore and archegoniophore in

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Riccia
Marchantia
Funaria
Pogonatums

ANSWER :B
Discussion
11941.

Question : Sex-organs in mosses are produced at

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Protonema
LEAFY stage
Secondary protonema
Sporophyte

Solution :Sex-organs (antheridia and ARCHEGONIA) in MOSSES are PRODUCED at leafy stage.
Discussion
11942.

Question : Sex index is applicable to ___________

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Homogenetic condition
Heterogametic condition
Genic balance
Gyandromorphs

Answer :C
Discussion
11943.

Question : Severe acuterespiratorysyndrome

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Iscaused by a variantof pneumococcurs pneumanae
Iscaused by avariant of thecommon COLD virus(corona virus )
ISAN ACUTE form of asthma
Affectsnon-vegetarians much FASTER than the vegetarians

Answer :B
Discussion
11944.

Question : Several statement are giv here in reference to cone cells which of the following option indicates all correct statement for cone cells ?Statement (i) Cone cells are less sensitive in bright light than Rod Cells (ii) They are responsible forcolour vision (iii) Erythropsin is a photo pigment which is sensitive to red colour light (iv) They are present in fovea of retina

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(III), (II) and (i)
(ii), (iii) and (IV)
(i), (iii) and (iv)
(i), (ii) and (iv)

SOLUTION :(ii), (iii) and (iv)
Discussion
11945.

Question : Several non-endocrine tissues secrete hormones calle These factors are essential for the normal growth of tissues and their repairing/regeneration.

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Growth factor
Maturation factor
Regeneration factor
Developing factor

Solution :Several non-endocrine TISSUES SECRETES HORMONES CALLED growth factor. These factors are essential for the normal growth of tissues and their repairing/regeneration
Discussion
11946.

Question : Several ribosomes attached to a single mRNA

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SOLUTION :Polyribosome
Discussion
11947.

Question : Setae help in locomotion in earthworm but are not uniformly present in all the segments. They are present in (A) 1^(st) segment (B) Last segment (C) Clitellar segment (D) 20^(th) - 22^(nd) segment

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`1^(st)` segment
Last segment
Clitellar segment
`20^(TH) - 22^(ND)` segment

Solution :Setae are located in earthworm except first, last and clitellum segm ENTS. They are m icro STRUCTURES made up of chitin.
Discussion
11948.

Question : Setae :

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SOLUTION :LOCATION : S SHAPED structures MADE up of chitin found in skin of earthworm.Function : To develop grip in SOIL and help in locomotion.
Discussion
11949.

Question : Set of autoimmune diseases is

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AIDS, SCID
Parkinson's DISEASE, HIV
Allergy, cystitis
Myasthenia gravis, Grave's disease

Answer :D
Discussion
11950.

Question : Sessile unisexual and neuter flowers are arranged acropetally in the inflorescence of

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ACHYRANTHES
TRIDAX
Colocasia
Cassia

Answer :C
Discussion