24277 + Interview Questions in Biology in Class 12 Page 137 InterviewSolution

6801.	Question : The commonediblemushroom is a
Answer» MASS of fungalspores type of hypha tightly packed MYCELIUM structureused for producing asexual spores Solution :Common EDIBLE mushroomsare fruitingbody of thefugusthat BEAR fungal spres.

Discussion

6802.	Question :The common defect of eye which develops in old age is :
Answer» GLAUCOMA ASTIGMATISM PRESBYOPIA Myopia Answer :A

Discussion

6803.	Question : The common bread wheat is a hexaploid. It carries genomes of:
Answer» TWO parents Three parents Only on E parents None of these SOLUTION :N//A

Discussion

6804.	Question : The common approaches for the treatment of cancer are
Answer» surgery radiation therapy immunotherapy all the above SOLUTION :all the above

Discussion

6805.	Question : The common ancestor of all the modern reptiles, birds and dinosaurs is:
Answer» Synapsids Sauropsids Therapsids Pelycosaurs Answer :B

Discussion

6806.	Question : The common and fatal disease of poultry is Ranikhet.
Answer» ANSWER :1

Discussion

6807.	Question : The combined length of seminiferous tubles of man is about.......... Meters.
Answer» `100-200` `200-400` `400-600` `600-800` ANSWER :B

Discussion

6808.	Question : The colourful part ofthe Sunfloweror Marigoldplant is
Answer» Flower INFLORESCENCE Fruit Seed Solution :Marigolds are hardly, annualplants and are great plantsfor cheeringup any garden Broadly, there are two genuses which are referred to by thecommon name, Marigolds viz. Tagents and Celandula. The colourful PART of MARIGOLD is Inflorescences. These areclusters of FLOWERS on a branch or a system of branches. They are categorized generally on the basis of the timing oftheir floweringand by their arrangement on an axis.

Discussion

6809.	Question : The coloured pigment anthocyanin is found inside_____
Answer» ANSWER :VACUOLE

Discussion

6810.	Question : The colour of urine is pale yellow due to the presence of _____ pigment.
Answer» ANSWER :UROCHROME

Discussion

6811.	Question : The colour of high yielding Mexican wheats were not liked by the indians. It was originally red grained. Their cultivation was adopted in India on large scale only when exposure to gamma radiations converted them to amber grained. Which of following methods of plant-breeding has been put into practice in the given case ?
Answer» POLYPLOID breeding Interspecific hybridisation Tissue culture Mutation breeding Answer :A

Discussion

6812.	Question : The colour of high yielding Mexican wheats were not linked by the indians. It was originally red grained. Their cultivation was adopted in India on large scale only when exposure to gamma radiations coverted them to amber grained. Which of following methods of plant-breeding has been put into practice in the given case ?
Answer» POLYPLOID breeding Interspecific hybridisation Tissue culture Mutation breeding Answer :A

Discussion

6813.	Question : The colour of both urine and faeces is due to breakdown products of haemoglobin. Identify the correct option of the pigments responsible for the colour of urine and faeces respectively are
Answer» UROCHROME and stercobilin Stercochrome and UROBILIN HAEM and globin BILIRUBIN and biliverdin ANSWER :A

Discussion

6814.	Question : The colonies of recombinant bacteria appear white in contrast to blue colonies of non- recombinant bacteria because of
Answer» Non-RECOMBINANT bacteria CONTAINING `BETA`-galactosidase INSERTIONAL inactivation of `ALPHA`-galactosidase in non-recombinant bacteria Insertional inactivation of `alpha`-galactosldase in recombinant bacteria Inactivation of glycosidase enzyme in recombinant bacteria Solution :Insertional inactivation of `alpha`-galactosldase in recombinant bacteria

Discussion

6815.	Question : The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of:
Answer» Non - RECOMBINANT bacteria containing beta - galactosidase INSERTIONAL inactivation of alpha - galactosidase in non - reacombinant bacteria Insertional inactivation of alpha - galactosidase in recombinant bacteria Inactivation of glycosidase enzyme in recombinant Answer :A

Discussion

6816.	Question :The colonisation of tropic pacific islands by humans have ' resulted in the extinction ' of more than _______________ species of native birds
Answer» 2,000 3 4500 1000 Answer :A

Discussion

6817.	Question : The cohesive force of water is due to :
Answer» S-bonds O-bonds H-bonds OH-bonds Answer :C

Discussion

6818.	Question : the coevolution theory for the originof viruses is
Answer» these have arisen simultaneously and showed evolution with other cells these arose from bacteriaas a result of the LOSS of CELL WALL, ribosomes etc these arose from some bacteria,which had developeda nucleus only these are modified plasmids, which are INFACT the fragements of the NUCLEIC acids of the host. Answer :A

Discussion

6819.	Question : The codons causing chain termination are
Answer» TAG, TAA, TGA GAT, AAT, AGT AGT, TAG, UGA UAA, UGA, UAG ANSWER :D

Discussion

6820.	Question : The codon which has dual function is :
Answer» UGA UUU AUG AAA Answer :C

Discussion

6821.	Question : The coding sequence of eukaryotic gene.
Answer» ANSWER :EXON

Discussion

6822.	Question : The codon for anticodon 3^'-UUA-5^' is :
Answer» `5^'-A AU-3^'` `3^'-A AU-5^'` `5^'-A AT-3^'` `3^'-A AG-5^'` ANSWER :A

Discussion

6823.	Question : The codon of m-RNA which determins aminoacid at the 6th position in polypeptide chain of normal haemoglobin is
Answer» GAG GUG CAC GTG Answer :A

Discussion

6824.	Question : The coding strand of DNA is:5'AATTCAAATTAGG3'What is the sequence of mRNA?
Answer» `3'TTAAGTTTAATCC5'` `5'AAUUCAAAUUAGG3'` `3'AAUUCAAAUUAGG5'` `5'TTAAGTTTAATCC3'` ANSWER :B

Discussion

6825.	Question : The codon AUG specifies
Answer» a] phenyl alanine b] valine C] TYROSINE d] METHIONINE ANSWER :D

Discussion

6826.	Question : The coding region of a gene is estimated to consist of 600 nucleotied base pairs.justify your answer
Answer» SOLUTION :GENETIC CODES are TRIPLET CODONS

Discussion

6827.	Question :The coconut water and the edible part of coconut are equivalent to
Answer» ENDOSPERM ENDOCARP MESOCARP Embryo Answer :A

Discussion

6828.	Question : The coacervate hypothesis was given by
Answer» AI Oparin HALDANE SYDNEY Fox DARWIN ANSWER :A

Discussion

6829.	Question : The colostrum the first milk secreted by the mother contains Ig-G.
Answer» ANSWER :IGA

Discussion

6830.	Question : The CO_(2) present in the atmosphere absorbs the long wavelength infrared rays and reflects them back towards the earth : As a result the earth and its surrounding atmosphere remain warm. This effect is called :(A) Greenhouse gas(B) Ozonic effect(C) Cyclic effect(D) Greenhouse effect
Answer» GREENHOUSE gas Ozonic EFFECT Cyclic effect Greenhouse effect ANSWER :D

Discussion

6831.	Question : The cluster of genes with related function is called …………………….
Answer» (a) CISTRON (B) OPERON (C) MUTON (d) Recon Solution :Operon

Discussion

6832.	Question : the 'clot buster' for removing clots from the blood vessels of patients is mainly obtained from
Answer» streotococcus staphylococcus pneumococcus bacillus Answer :A

Discussion

6833.	Question : The closest relative of modern manis considered to be
Answer» ORANGUTAN GIBBON CHIMPANZEE Gorilla Answer :B

Discussion

6834.	Question : The clot formation can be prevented by treatmet with ______ in gene therapy:
Answer» Dnase Recombinant vaccine TPA TGF-B Answer :C

Discussion

6835.	Question : The 'clot buster' produced by Streptococcus and modified by genetic engineering is:
Answer» streptokinase penicillin strepsils cyclosporin A Answer :A

Discussion

6836.	Question : The closed ascocarp is
Answer» APOTHECIUM AMPHITHECIUM ENDOTHECIUM CLEISTOTHECIUM ANSWER :D

Discussion

6837.	Question : The cloing fo the sheep dolly by lan Wilmut took :
Answer» UDDER CELL musclecell Blood cell nerve cell ANSWER :A

Discussion

6838.	Question : The 'clitoris' is located in urethral opening at the
Answer» LOWER JUNCTION of the TWO LABIA minora upper junction of the two labia majora lower junction of the two labia majora upper junction of the two labia minora Answer :D

Discussion

6839.	Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(a) Complete the mising step(B) and (D).
Answer» ANSWER :step (B) : lymphocytes are grown in culture medium. Step (D) : gene of INTEREST is isolated from another organism and amplisied USING PCR.

Discussion

6840.	Question : The clinical test that is used for diagnosis of typhoid is(A) ELISA(B) ESR(C) PCR(D) Widal
Answer» ELISA ESR PCR Widal Solution :The chemical test that is USED for diagnosis of typhoid is Widal-Test. ELISA Test is diagnostic test for AIDS. ESR is erythrocyte SEDIMENTATION rate and is a test that MEASURES how quickly erythrocytes settle at the bottom of a test tube containing blood SAMPLE. PCR polymerase chain REACTION is tioproduce,multiple copies of the gene of interest.

Discussion

6841.	Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(b) Identify the disease to be cured.
Answer» ANSWER :(B) Andenosine DEAMINASE (ADA) deficiancy

Discussion

6842.	Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function. Observe the therpeutical flow chat and give the answer of the following:(4) Scientists have developed a method to cure this disceas permanently.How?
Answer» Answer :if the gene isolated from bone MARROW cells producingADA is INTRODUCED into cells at early EMBRYONIC stages it could be a PERMANENT CURE

Discussion

6843.	Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(c) Why the above method is not a complete solution to the problem?
Answer» Answer :(C)As GENETICALLY ENGINEERED lymphocytes are not immortal the patients requires periodic infusion of cells

Discussion

6844.	Question : The cliemiosmotic coupling hypothesis of oxidative phosphorylation processes that adenosine triphosphate (ATP) is formed because:
Answer» A proton gradient FORMS across the INNER membrane There is a change in the permeability of the inner MITOCHONDRIAL membrane toward adenosine diphosphate(ADP) High ENERGY bonds are formed in mitochondrial proteins. ADP is pumped out of the matrix into the intermembrane space Answer :A

Discussion

6845.	Question : The climax community of every succession is not isolated with one or two species of organisms.' Justify.
Answer» Solution :The climax community of EVERY succession is the FOREST. It is a stable community. The community organisation becomes more COMPLEX in the climax community. A large number of PLANT and ANIMAL species occur in a forest.

Discussion

6846.	Question : The circulation of cycling of elements in an ecosystem is known as
Answer» GEOLOGICAL cycling Geochemical cycling Bio geochemical cycle Nutrient cycling Answer :C

Discussion

6847.	Question : The chronological order of human evolution from early to the recent is
Answer» (i) Ramapithecus to HOMO habilis to AUSTRALOPITHECUS to Homo erectus (ii) Australopithecus to Homo habilis to Ramapithecus to Homo erectus (III) Australopithecus to Ramapithecus to Homo HABITS to Homo erectus (iv) Ramapithecus to Australopithecus to Homo habilis to Homo erectus Answer :D

Discussion

6848.	Question : The chronic use of drugs and alcohol results in
Answer» excess mucous and blood clots internal bledding and muscular PAIN cirrhosis and nervous system DAMAGE LEUKAEMIAS and lymphomas. Answer :C

Discussion

6849.	Question : The chromosome number of oninon is 16 (2n).Find the chromosome number in the following cells with reasons.Zygote
Answer» ANSWER :A

Discussion

6850.	Question : The chromosomes become invisible in
Answer» MITOSIS AMITOSIS mitosis all the THREE ANSWER :B

Discussion

Explore topic-wise InterviewSolutions in .

Question : The commonediblemushroom is a

Question :The common defect of eye which develops in old age is :

Question : The common bread wheat is a hexaploid. It carries genomes of:

Question : The common approaches for the treatment of cancer are

Question : The common ancestor of all the modern reptiles, birds and dinosaurs is:

Question : The common and fatal disease of poultry is Ranikhet.

Question : The combined length of seminiferous tubles of man is about.......... Meters.

Question : The colourful part ofthe Sunfloweror Marigoldplant is

Question : The coloured pigment anthocyanin is found inside_____

Question : The colour of urine is pale yellow due to the presence of _____ pigment.

Question : The colour of both urine and faeces is due to breakdown products of haemoglobin. Identify the correct option of the pigments responsible for the colour of urine and faeces respectively are

Question : The colonies of recombinant bacteria appear white in contrast to blue colonies of non- recombinant bacteria because of

Question : The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of:

Question :The colonisation of tropic pacific islands by humans have ' resulted in the extinction ' of more than _______________ species of native birds

Question : The cohesive force of water is due to :

Question : the coevolution theory for the originof viruses is

Question : The codons causing chain termination are

Question : The codon which has dual function is :

Question : The coding sequence of eukaryotic gene.

Question : The codon for anticodon 3^'-UUA-5^' is :

Question : The codon of m-RNA which determins aminoacid at the 6th position in polypeptide chain of normal haemoglobin is

Question : The coding strand of DNA is:5'AATTCAAATTAGG3'What is the sequence of mRNA?

Question : The codon AUG specifies

Question : The coding region of a gene is estimated to consist of 600 nucleotied base pairs.justify your answer

Question :The coconut water and the edible part of coconut are equivalent to

Question : The coacervate hypothesis was given by

Question : The colostrum the first milk secreted by the mother contains Ig-G.

Question : The CO_(2) present in the atmosphere absorbs the long wavelength infrared rays and reflects them back towards the earth : As a result the earth and its surrounding atmosphere remain warm. This effect is called :(A) Greenhouse gas(B) Ozonic effect(C) Cyclic effect(D) Greenhouse effect

Question : The cluster of genes with related function is called …………………….

Question : the 'clot buster' for removing clots from the blood vessels of patients is mainly obtained from

Question : The closest relative of modern manis considered to be

Question : The clot formation can be prevented by treatmet with ______ in gene therapy:

Question : The 'clot buster' produced by Streptococcus and modified by genetic engineering is:

Question : The closed ascocarp is

Question : The cloing fo the sheep dolly by lan Wilmut took :

Question : The 'clitoris' is located in urethral opening at the

Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(a) Complete the mising step(B) and (D).

Question : The clinical test that is used for diagnosis of typhoid is(A) ELISA(B) ESR(C) PCR(D) Widal

Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(b) Identify the disease to be cured.

Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function. Observe the therpeutical flow chat and give the answer of the following:(4) Scientists have developed a method to cure this disceas permanently.How?

Question : The clinical gene therapy is given to a 4 years old patient for a enzyme which is curcial for the immune system to function.Observe the therpeutical flow chat and give the answer of the following:(c) Why the above method is not a complete solution to the problem?

Question : The cliemiosmotic coupling hypothesis of oxidative phosphorylation processes that adenosine triphosphate (ATP) is formed because:

Question : The climax community of every succession is not isolated with one or two species of organisms.' Justify.

Question : The circulation of cycling of elements in an ecosystem is known as

Question : The chronological order of human evolution from early to the recent is

Question : The chronic use of drugs and alcohol results in

Question : The chromosome number of oninon is 16 (2n).Find the chromosome number in the following cells with reasons.Zygote

Question : The chromosomes become invisible in