24277 + Interview Questions in Biology in Class 12 Page 384 InterviewSolution

19151.	Question : Connell's field experiment illustrates
Answer» COMPETITIVE RELEASE Competitive EXCLUSION INTERFERENCE of COMPETITION Commensalism Answer :A

Discussion

19152.	Question : Connective tissue is vascular.
Answer» ANSWER :EPITHELIAL TISSUE

Discussion

19153.	Question : Connective tissue is –
Answer» ECTODERMAL in ORIGIN WITHOUT INTERCELLULAR spaces Mesodermal in origin without intercellular spaces Ectodermal in origin with intercellular spaces Mesodermal in origin with intercellular spaces Answer :D

Discussion

19154.	Question : Connective tissue around seminiferous tubules possess endocrine cells called
Answer» LEYDIG CELLS Sertoli cells Primary germ cells Both A and B ANSWER :A

Discussion

19155.	Question : connective tissue covering the testis called ?
Answer» ANSWER :TUNICA ALBUGINEA

Discussion

19156.	Question :Connection of bone to bone is by
Answer» Cartilage tendon muscle ligament ANSWER :D

Discussion

19157.	Question : Connecting link between Annelida and Mollusca is
Answer» PERIPATUS LEPIDOSIREN NEOPILINA Protopterus SOLUTION :Neopilina

Discussion

19158.	Question : Connecting link.
Answer» LINK between TWO classes link between two GROUPS link between two kingdoms all of the above Answer :D

Discussion

19159.	Question : Conjugation in Spirogyra involves
Answer» morpholoically similar gametes PHYSIOLOGICALLY similar GEMETES physiologically similar gametes Both(a)and (c ) ANSWER :C

Discussion

19160.	Question : Connect the in the column A with suitable defination given below and fill up column B. a) Rate of biomass production b) Rate of storage of organic matter by producers in excess of their metabolic consumption. Rate of production of organic matter by plants during photosynthesis. Rate of formation of new organic matter by consumers.
Answer» SOLUTION :1) B2) C3) A4) d

Discussion

19161.	Question : Conjugation as a sexual reproduction occurs in which animals ?(A) Birds(B) Hydra(C) Paramecium(D) Spirogyra
Answer» BIRDS HYDRA PARAMECIUM Spirogyra Answer :C

Discussion

19162.	Question : Conjoint and closed vascular:.bundles with no phloem parenchyma may be observed in
Answer» MONOCOT stem monocot ROOT DICOT stem dicot root Answer :A

Discussion

19163.	Question : Conifers are adapted to tolerate extreme environmental conditions because of
Answer» broad hardy leaves superficial stomata thick cuticle the PRESENCE of vessels Solution :(c) CONIFERS are gymnosperms. Their leaves show xerophytic adaptations. The leaves are LIKE needle with thick walled single LAYERED epidermal cells covered with thick cuticle. This ENABLES them to tolerate extreme climatic conditions.

Discussion

19164.	Question : Conidia brearing structuresof Penicillium are
Answer» metulae RAMI STERIGMATA ASCI ANSWER :C

Discussion

19165.	Question : Congenital hypothyroidism results in
Answer» Myxoedema Exopthalmos Dwarfism Cretinism Answer :D

Discussion

19166.	Question : Confusion technique is used in:
Answer» INCREASING POPULATION of predators reducing HARMFUL insects developing resistance eliminating weeds Answer :A

Discussion

19167.	Question : Cone bearing pteridophyta are :-
Answer» LYCOPSIDA and PSILOPSIDA FILICINAE and Lycopsida Filicinae and SPHENOPSIDA Lycopsdia and Sphenopsida ANSWER :D

Discussion

19168.	Question : Conduction of sap in plants occurs through:
Answer» HEART WOOD only Sap wood only Xylem as whole All of these Answer :B

Discussion

19169.	Question : Conduction speed of impulse is
Answer» more ACROSS an ELECTRICAL synapse more across a CHEMICAL synapse equal in both chemical and electrical synapses equal to that of ACTIONA potentials Answer :A

Discussion

19170.	Question :Condoms are one of the most popular contraceptives because of the following reasons.(A) These are effective barriers for insemination(B) They do not interfere with coital act(C) These help in reducing the risk of STDs(D) All of the above
Answer» These are effective barriers for INSEMINATION They do not interfere with coital act These help in REDUCING the risk of STDs All of the above Solution :Nirodh / CONDOMS are BARRIER which are made up of thin rubber or latex sheath that are used to cover the penis in the male or vagina and cervix in the female. Condoms are to be THROWN after one time use. It provides protection to user against AIDS and STDs. They have to be used regularly and to be worn before doing coitus, else fluid along with sperms will remain in vagina. They do not interfere in coital act.

Discussion

19171.	Question : Conducing system of the heart.
Answer» SOLUTION :

Discussion

19172.	Question : Condom and Diphragms :
Answer» Solution :Condom : It is MADE up of thin RUBBER / latex sheath that are used to cover the penis in the MALE during COITUS to prevent ejaculation of semen in vagina. Diphragms : They are also made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus to prevent entry of SPERMS.

Discussion

19173.	Question : Conditions responsible for shifting of O_2 dissociation curve away from Y-axis (Right side) are
Answer» LOW`pO_2` HIGH `pCO_2` High temperature All ANSWER :D

Discussion

19174.	Question : Conditions of a karyotype 2n +- 1 and 2n +-2 are called
Answer» Aneuploidy Polyploidy Allopolyploidy MONOSOMY Solution :Aneuploidy represent chromosomes NUMBER different than multiple of basic CHROMOSOME number. it is due to failure of segregation of chromatids during cell division which results in the gain or loss of a chromosome(s), called aneuploidy. Aneuploidy arises due to non-disjunction of homologous chromosome. = Aneuploidy is of four TYPES: (i) Monosomy = 2n-1 (ii) Nullisomy = 2n - 2 (iii) Trisomy = 2n + 1 (iv) Tetrasomy = 2n +2

Discussion

19175.	Question : Conditions of a karyotype 2n+-1 and 2n+-2 are called
Answer» Aneuploidy Polyploidy Allopolyploidy Monosomy Answer :A

Discussion

19176.	Question : Conditioned reflex can be differentiated from unconditioned reflex as the former
Answer» Is an inbom reflex Can be inherited from one generation to next Does not DEPEND on any LEARNING PROCESS Needs the DEVELOPMENT of a NEW reflex arc by a process of continuous repitition Answer :D

Discussion

19177.	Question : Conditions essential for imbibition is/are
Answer» Water POTENTIAL gradient between the LIQUID IMBIBED and the absorbent Affinity between the adsorbent and the imbibed liquid Hydrophobic adsorbent Both (1) and (2) Answer :D

Discussion

19178.	Question : Condition where phloem and xylem occur on the same radius in a vascular bundle.
Answer» ANSWER :COLLATERAL

Discussion

19179.	Question : Condition of seed where it fails to germinate even thoughthe favourable environmental conditions are available.
Answer» ANSWER :DORMANCY

Discussion

19180.	Question : Condensation of two amino acids forms a_____
Answer» ANSWER :DIPEPTIDE

Discussion

19181.	Question : condition found in roots of a plant having assimilatory submerged roots and spongy petioles
Answer» tetrarch triarch monarch diarch Solution :TRAPA

Discussion

19182.	Question : Condensation of chromosomes is completeed in metaphase.
Answer» ANSWER :1

Discussion

19183.	Question : Concept of ecological pyramids was proposed by:-
Answer» Odum Tansley Reiter Charles Elton Answer :D

Discussion

19184.	Question : The concept of "Biological species " was proposed by :
Answer» DAVIS and Heywood(1963) MAYR(1942) Simpson(1961) PROFESSOR A.D. Bradshaw Answer :B

Discussion

19185.	Question : Concept of ecological pyramids was other in a food chain is :
Answer» REITER odum Darwin Elton Answer :D

Discussion

19186.	Question : Concentrationofglucose in blood is:
Answer» `0.5%` `2%` `0.1%` `8%` ANSWER :C

Discussion

19187.	Question : Concentration of alcohol in a sugar solution inoculated with yeast after which yeast gets killed is
Answer» 0.13 0.25 0.3 0.2 Answer :A

Discussion

19188.	Question : Concentration of carbonic acid does not increase in blood due to presence of
Answer» `NA^+` `Mg^(++)` `Ca^(2+)` `K^(+)` Answer :A

Discussion

19189.	Question : "concentrates" used as feed for cattle include
Answer» broken grams and CEREALS MILLETS GRAM barn all of the above ANSWER :D

Discussion

19190.	Question : Computer based study and designing of genome is called
Answer» PROTEOMICS Genomics FERMENTOR BIOREACTOR Answer :B

Discussion

19191.	Question : Compressed Natural Gas (CNG) is(A) propane(B) Methane(C) ethane(D) butane
Answer» propane Methane ethane butane SOLUTION :COMPRESSED Natural Gas (CNG) is methane. Mixture of propane and butane is LPG.

Discussion

19192.	Question : Compounds which enhance mutagenic effects of mutagens _____
Answer» SOLUTION :COMUTAGENS

Discussion

19193.	Question : Compound soluble in water which does not impede oxygen transportation is
Answer» `SO_(2)` `SO_(3)` CO NO Answer :A

Discussion

19194.	Question : Components of waterpotential of four cells of an acitvely transpiringmonocot plant are {:("cell","osmotic Potenial ","Pressure Potential"),(a,-0.9,0.5),(b,-0.8,0.6),(c,-0.6,0.1),(d,-0.7,0.4):} Identify the four cells as root hair, Cortical cell, endodermal and pericycle cells
Answer» B, C, d, a b, d, c, a b, d, a, c a, d, b, c, ANSWER :B

Discussion

19195.	Question : Composited manure consists of
Answer» Cattle DUNG and crop residue Cattle dung and ANIMAL waste Residue of gobor gas PLANT Rotten vegetables,CROPS residue and animal refuse Answer :D

Discussion

19196.	Question : _____component of phloem is absent in monocot stem
Answer» ANSWER :PHLOEM PARENCHYMA

Discussion

19197.	Question : Complimentary cells are :-
Answer» Collenchymatous Parenchymatous Sclerenchymatous Meristematic Answer :B

Discussion

19198.	Question : Completely involuntary unstriated muscles occur in :-
Answer» BASE of pinna Pylorus Eye lids Diaphragm Answer :B

Discussion

19199.	Question : Completion of DNA replication is screened by:
Answer» RESTRICTION POINT `G_1` CHECK point `G_2`check point M check point Answer :C

Discussion

19200.	Question : Complete the table with appropriate terms:
Answer» Solution :A = ASPERGILLUS NIGER, B = Acetic acid , C = Cyclosporin- A D= MONASCUS purpureus.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Connell's field experiment illustrates

Question : Connective tissue is vascular.

Question : Connective tissue is –

Question : Connective tissue around seminiferous tubules possess endocrine cells called

Question : connective tissue covering the testis called ?

Question :Connection of bone to bone is by

Question : Connecting link between Annelida and Mollusca is

Question : Connecting link.

Question : Conjugation in Spirogyra involves

Question : Conjugation as a sexual reproduction occurs in which animals ?(A) Birds(B) Hydra(C) Paramecium(D) Spirogyra

Question : Conjoint and closed vascular:.bundles with no phloem parenchyma may be observed in

Question : Conifers are adapted to tolerate extreme environmental conditions because of

Question : Conidia brearing structuresof Penicillium are

Question : Congenital hypothyroidism results in

Question : Confusion technique is used in:

Question : Cone bearing pteridophyta are :-

Question : Conduction of sap in plants occurs through:

Question : Conduction speed of impulse is

Question :Condoms are one of the most popular contraceptives because of the following reasons.(A) These are effective barriers for insemination(B) They do not interfere with coital act(C) These help in reducing the risk of STDs(D) All of the above

Question : Conducing system of the heart.

Question : Condom and Diphragms :

Question : Conditions responsible for shifting of O_2 dissociation curve away from Y-axis (Right side) are

Question : Conditions of a karyotype 2n +- 1 and 2n +-2 are called

Question : Conditions of a karyotype 2n+-1 and 2n+-2 are called

Question : Conditioned reflex can be differentiated from unconditioned reflex as the former

Question : Conditions essential for imbibition is/are

Question : Condition where phloem and xylem occur on the same radius in a vascular bundle.

Question : Condition of seed where it fails to germinate even thoughthe favourable environmental conditions are available.

Question : Condensation of two amino acids forms a_____

Question : condition found in roots of a plant having assimilatory submerged roots and spongy petioles

Question : Condensation of chromosomes is completeed in metaphase.

Question : Concept of ecological pyramids was proposed by:-

Question : The concept of "Biological species " was proposed by :

Question : Concept of ecological pyramids was other in a food chain is :

Question : Concentrationofglucose in blood is:

Question : Concentration of alcohol in a sugar solution inoculated with yeast after which yeast gets killed is

Question : Concentration of carbonic acid does not increase in blood due to presence of

Question : "concentrates" used as feed for cattle include

Question : Computer based study and designing of genome is called

Question : Compressed Natural Gas (CNG) is(A) propane(B) Methane(C) ethane(D) butane

Question : Compounds which enhance mutagenic effects of mutagens _____

Question : Compound soluble in water which does not impede oxygen transportation is

Question : Components of waterpotential of four cells of an acitvely transpiringmonocot plant are {:("cell","osmotic Potenial ","Pressure Potential"),(a,-0.9,0.5),(b,-0.8,0.6),(c,-0.6,0.1),(d,-0.7,0.4):} Identify the four cells as root hair, Cortical cell, endodermal and pericycle cells

Question : Composited manure consists of

Question : _____component of phloem is absent in monocot stem

Question : Complimentary cells are :-

Question : Completely involuntary unstriated muscles occur in :-

Question : Completion of DNA replication is screened by:

Question : Complete the table with appropriate terms: