24277 + Interview Questions in Biology in Class 12 Page 162 InterviewSolution

8051.	Question : Sound is transmitted from middle ar to internal ear due to
Answer» Vibrations of tympanum Vibrations of stapes Strinkin G of stapes All the above. ANSWER :C

Discussion

8052.	Question : Sound box of bird is :
Answer» Pygostyle Larynx Syrinx Cloaca Answer :C

Discussion

8053.	Question : Sound becomes a hazardous noise pollution it its level is above :
Answer» 30 dB 80 dB 120dB 150 dB Answer :C

Discussion

8054.	Question : Sorghum is native to _________ continent.
Answer» ANSWER :AFRICA

Discussion

8055.	Question : Sorghum and sugarcane plants show saturation at about
Answer» 50% of FULL SUNLIGHT 10% of full sunlight 360 ppm of `CO_2` 500 ppm of `CO_2` Answer :C

Discussion

8056.	Question : Sophic was born with a genetic disorder - ADA deficiency. Can you suggest methods to treat this ADA deficiency?
Answer» SOLUTION :Bone MARROW transplantation. ENZYME replacement therapy GENE therapy

Discussion

8057.	Question : Sophic was born with a genetic disorder - ADA deficiency. What is ADA deficiency?
Answer» Solution :Adenosine deaminase deficiency isa GENETIC disorder is caused due to the deletion of the GENE for adenosine deaminase ENZYME for the IMMUNE system to function.

Discussion

8058.	Question : Sonalika and Kalyansona are the semi-dwarf, high yielding varieties of ……….. .
Answer» rice wheat jowar bajra Answer :B

Discussion

8059.	Question : Sonalika and Kalyan sona are varries of
Answer» wheat Rice MILLET TOBACCO ANSWER :A

Discussion

8060.	Question : Sonalika and Kalyan Sona are varieties of
Answer» Wheat RICE Millet Tobacco Solution :Sonalika and Kalyan Sona are VARIETIES of wheat DEVELOPED in 1963 at IARI as a part of systematic PROGRAM for breeding semi-dwarf varieties.

Discussion

8061.	Question : Sometimes the own body cells attack on the body what is called it ?
Answer» ALLERGY IMMUNO deficiency SYNDROME Carcinoma Auto immune Disease SOLUTION : Auto immune Disease

Discussion

8062.	Question : Sometimes the thalamus project in to the ovary nad the carpels remain attached on it this structure is called
Answer» CARPOPHORE ANTHOPHORE thanlamophore ynophore ANSWER :A

Discussion

8063.	Question : Sometimes due to biotic/abiotic factor the climax remain in a particular seral stage (pre climax without reaching climax. Do you agree with this statement. If yes give a suitable example.
Answer» SOLUTION :Sometimes DUE to effect of biotic or abiotic factors definite CLIMAX community stays without reaching to final climax community because during ecological succession any change affectedly definite successive stages through abiotic and biotic factors means it affects primary climax community before reaching to final climax STAGE. This type of condition is generated in presence of seed and other vegetative reproductive products. In this region dependent of secondary, it is produced by moss and strange weeds. Thus the climax GROUPS showing succession in serious way are never produced. Climax communities groups are never produced in natural calamities like fire land slide, flood and in changes in its own composition of soil/clay.

Discussion

8064.	Question : Sometimes, DNA brought by the phase does not integrate with the genome of the recipient bacterium and is lost after one or two generations such genetic recombination is called
Answer» GENERALISED Transduction Specific transduction Abortive transduction Conjugation Answer :C

Discussion

8065.	Question : Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/ position of eye(s) etc. Comment.
Answer» Solution :There is a DISTURBANCE in co-ordinated REGULATION of EXPRESSION of sets of genes associated with organ DEVELOPMENT.

Discussion

8066.	Question : Some traits in human beings show criss-cross inheritance. Name any two such traits. With a suitable cross show the inheritance of any one of such traits which result in one-fourth of the progeny with the genetic defect.
Answer» SOLUTION :

Discussion

8067.	Question : Some type of orchids live on the branches of mango trees.The relationship between mango tree and orchid is an example.
Answer» Mutualism Predation Commensalism Parasitism Answer :C

Discussion

8068.	Question : Some types of orchids live on the branches of mango tree. The relationship between mango tree and orchids is an example of _____ (i) Mutualism (ii) Predation (iii) Commensalism (iv) Parasitism
Answer» SOLUTION :COMMENSALISM

Discussion

8069.	Question : Some times genetically modified organisms will make unpredictable results in future. Which is the organisation of Govt. Of India monitor the validity of GM research.
Answer» Answer :GEAC ( GENETIC ENGINEERING APPROVAL COMMITTEE)

Discussion

8070.	Question : Some technique commonaly used for infertility treatment are given below.Read them carefully and answer the question.,ZIFT,GIFT,ICSI,IUI,IVFWhich the common term used to denote the technique given above.
Answer» SOLUTION :ART-Assisted REPRODUCTIVE TECHNIQUE.

Discussion

8071.	Question : Some technique commonly used for infertility treatment are given below. Read them carefully and answer the question.ZIFT,GIFT,ICSI,IUI,IVFDistinguish between ZIFT and GIFT.
Answer» Solution :ZIFT(ZYGOTE INTRA FALLOPIAN TRANSFER):OCCURS in vitro,zygote introduced into fallopian tube. GIFT(Gamete Intra Transfer):occurs in vivo gamete introduced into fallopian tube.

Discussion

8072.	Question : Some statements are given below each with one or two blanks. Select the option that correctly fills up the blanks. (i) High concentration of DDT disturbs ____ in birds, which causes ____. (ii) ____ burns more efficiently as compared to petrol and diesel. (iii) ___ is the natural ageing of a lake which occurs due to accumulation of ____. (iv) ______ reduces the number of organisms which are sensitive to high temperature. (v) Irreparable computers and other electronic goods are known as ____.
Answer» (i) calcium METABOLISM, thinning of egg shell (II) CNG (iii) Eutrophication, nitrates and phosphates (iv) THERMAL wastewater (v) electronic waste (i) protein metabolism, THICKENING of egg shell (ii) CNG (iii) Eutrophication, nitrates and phosphates (iv) Thermal wastewater (v) electronic waste (i) calcium metabolism, thinning of egg shell (ii) Coal (iii) Biomagnification, nitrates and phosphates (iv) ORGANIC wastewater (v) inorganic waste (i) calcium metabolism, thckening of egg shell (ii) CNG (iii) Biomagnification, DDT and mercury (iv) Thermal wastewater (v) electronic waste Solution :N//A

Discussion

8073.	Question : Some statements are given below :- (a) In gymnosperms the male and the female gametophytes do not have an independent free-living existence (b) In Cycas foliage leaves are pinnately compound (c) The stems are branched in Pinus and Cedrus (d) In Pinus, male cones and female cones are borne on different trees. Out of them, which statements are correct ?
Answer» a, B a, b, C c, d a, b, c, d Answer :B

Discussion

8074.	Question : Some pollen grains cannot germinate on stigmatic surface due to the loss of viability. Name the factors influence the viability of pollen.
Answer» SOLUTION :TEMPERATURE & HUMIDITY

Discussion

8075.	Question : Some plants have a habit of harbourign ants to save the plants from damgae by other animals which is know as
Answer» Entamophily Myrmecophily Anemophyily HYDROPHILY ANSWER :B

Discussion

8076.	Question : Some plants can store ammonium ions, even though they are highly toxic. These plants are
Answer» Begonia Oxalis Paddy Both (a) and (B) ANSWER :D

Discussion

8077.	Question : Some pollen grains cannot germinate on stigmatic surface due to the loss of viability. How do the pollen grains can keep up for many years.
Answer» Solution :Pollen GRAINS are KEPT in Pollen bank at `-196°c` in liquid NITROGEN.

Discussion

8078.	Question : Some peoples live in area are subjected to allergic disease due to pollen grains. (b) Give an example for two disease?
Answer» SOLUTION :ASTHMA and BRONCHITIS

Discussion

8079.	Question : Some plants are used to extract chemicals used as drugs a. Mention the type of products extracted. b. Give some examples of this products and their uses.
Answer» Solution :a. Botano CHEMICALS. b. PAPAVER somniferum - MORPHINE Chinchona ledgeriana - Quinine Taxus brevifolia - TAXOL

Discussion

8080.	Question : Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of four examples.
Answer» Solution :Thick walled SPORES are formed in microbes to overcome unfavorable stressful external environment. Spores germinate in FAVORABLE condition. In higher plants seeds and other vegetative reproductive structures are means to tide over the stress. They reduce their metabolic activity and going into a state of .dormancy.. Hibernation : During WINTER animals like bearsescape in time Aestivation : Animals like snail and fish avoid summer related problem like heat and desiccation. DIAPAUSE : Many zooplanktons undergo a stage of suspended development in unfavourable CONDITIONS.

Discussion

8081.	Question : Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of any four examples.
Answer» Solution :Examples-(i) In bacteria, fungi and LOWER plants various kind of thick walled spore are formed which help them to SURVIVE unfavourable conditions. (ii) In higher plants, seeds and some other vegetative forms reproductive propagules serve as a means to tide over period of stress, besides helping in seed dispersal. (iii) Bears going into hibernation during winter. (IV) Snails and fishes GO into aestivation to avoid summer RELATED heat problems and dessication. (v) Many zooplankton are known to enter diapause, a stage of suspended development.

Discussion

8082.	Question : Some organisms are called top carnivores. Why? Give some examples.
Answer» SOLUTION :(a) Top carnivoresdo not have direct PREDATORS. So, they are REFERRED to as carnivores. (b) Egs: Man, LION, Tiger etc.

Discussion

8083.	Question : Someorganisms like desert lizards lack the physiologicalabilities to copewithvariations in theirenvironmentbut showsomebehavioralresponses. Comment on.
Answer» Solution :Theybaskin the SUN andabsorb heat whentheirbodytemperaturedropsbelowthe comfortzone.But moveintoshadethe ambientintothe soilto hideand ESCAPE from the ABOVEGROUND HEAF.

Discussion

8084.	Question : Some organisms are able to maintain homeostasis by physical means................
Answer» CONFORM REGULATE MIGRATE SUSPEND SOLUTION :Regulate

Discussion

8085.	Question : Some organism are different in their toleration level to temperature fluctuations. Name the type of organism that can tolerate wide rang of temperature variation especially in increased global temperature?
Answer» SOLUTION :EURYTHERMAL SPECIES.

Discussion

8086.	Question : Some organism are different in their toleration level to temperature fluctuations.Name the other type of organism restricted to narrow range.
Answer» SOLUTION :Stenothermal

Discussion

8087.	Question : Some organism are capable of producing fertilized egg but others are not possibleName the organism producing fertilized egg.
Answer» SOLUTION :OVIPAROUS ANIMALS.

Discussion

8088.	Question : Some of the steps involved in the production of Humulin are given below. Choose the correct sequenceI. Synthesis of gene for human insulin artificially II. Culturing recombinant E.coli in bioreactorsIII. Purification of HumulinIV. Insertion of human insulin gene into plasmidV. Introduction of recombinant plasmid into E.coli VI. Extraction of recombinant gene product from E.coli.
Answer» I, II, IV, III, V, VI I,III, V, VI,II,IV I, IV, V, II, VI, III III, V, II, I, VI, IV Solution :I, IV, V, II, VI, III

Discussion

8089.	Question : Some of the step involved in the production of humulin are given below. Arrange them in the correct sequence and select the correct option (i) Synthesis of gene (DNA) for human insulin artifically (ii) Culturing recombinant E.coli in bioreactors (iii) Purification of humulin (iv) Insertion of human insulin gene into plasmid (vi) Etraction of recombinant gene product from E.coli.
Answer» (ii),(i),(iv),(III),(V),(VI) (i),(iii),(v),(vi),(ii),(iv) (i),(iv),(v),(ii),(vi),(iii) (iii),(v),(ii),(i),(vi),(iv) ANSWER :C

Discussion

8090.	Question : Some of the steps involved in the production of humulin are given below. Choose the correct sequence. (i) Synthesis of gene (DNA for human insulin artificially. (ii) Culturing recombinant E.coli in bioreactors. (iii) Purification of humulin. iv Insertion of human insulin gene into plasmid (v) Introduction of recombinat plasmid into E.coli (vi) Extraction of recombinant gene product from E.coli.
Answer» II, i, IV, iii, v, vi i, iii, v, vi, ii, iv i, iv, v, ii, vi, iii iii, v, ii, i, vi, iv Answer :C

Discussion

8091.	Question : Some of the most important symptoms of diseases caused by virus, fungi and nematodes are given below. writethe symptoms according to the pathogen in the table given below.
Answer» SOLUTION :

Discussion

8092.	Question : Some of the nutrient cycle are labelled as below. Sulphur cycle(i), phosphorus cycle (ii),carbon cycle(iii)and nitrogen cycle(iv)of these, the sedimentrary cycle is represented by
Answer» (i) only (II)only (III)only (i)and(ii)only ANSWER :D

Discussion

8093.	Question : Some of the characteristics of Bt cotton are
Answer» long fibre and resistance to aphids medium-yield, long fibre and resistance to beetle pests high yield and PRODUCTION of TOXIC protein CRYSTALS which kill dipteran pests high yields and resistance to bollworms Solution :Transgenic BT cotton, which produces its own insecticide contains a gene from a soil bacterium (Bacillus thuringiensis). Bt Cotton is usually resistant to bollworm disease of cotton

Discussion

8094.	Question : Some of the charcteristics of Bt cotton are
Answer» Long fibre and resistant to aphids MEDIUM YIELD , long fibre and resistant to BEETLE pests high yield and production of TOXIC protein crystals which KILL dipteran pests. High yield resistant to ball worms Answer :B

Discussion

8095.	Question :Some of the characteristics of Bt-cotton are(A) Long fiber and resistance to aphids(B) Medium yield, long fiber and resistance to beetle pests.(C) High yield and production of toxic protein crystals which kill dipteran pests(D) High yield and resistance to boll worms
Answer» LONG FIBRE and RESISTANCE to aphids medium yield, long fibre and resistance to beetle pests. high yield and production of toxic protein crystals which kill dipteran pests high yield and resistance to BOLL worms Solution :high yield and resistance to boll worms

Discussion

8096.	Question : Some multinational companies and other organisation are using bioresources for commercial benefits, Without proper anthentication and compensaition to concernet anthorities.(b) suggest any two ways to gets rid of this.
Answer» Answer :B. (1) benifits of BIO resorces should between DEVELOPED and developing NATION (2) laws should be devloped to prevent UNAUTHORISED exploitation of the bioresources

Discussion

8097.	Question : Some multinational companies and other organisation are using bioresources for commercial benefits, Without proper anthentication and compensaition to concernet anthorities.(a) Give the trem for this unauthoriesed act.
Answer» ANSWER :BIOPIRACY

Discussion

8098.	Question : Some microorganisms live in our stomach and they play a very beneficial role in checking disease causing microbes these are
Answer» Fungi Actinomycetes Protozoans Bacteria Answer :D

Discussion

8099.	Question : Some individuals with blood group A may inherit the genes for blond hair, while other individuals with blood group A may inherit the genes for brown hair. This can be best explained by the principate of
Answer» Dominance Multiple alleles Independent Assortment Incomplete dominance Answer :C

Discussion

8100.	Question : Some individuals with blood group A may inherit the genes for blond hair, while other individuals with blood group A may inherit the gene for brown hair. This can be best explained by the principle of
Answer» DOMINANCE Multiple ALLELES Independent ASSORTMENT Incomplete dominance Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Sound is transmitted from middle ar to internal ear due to

Question : Sound box of bird is :

Question : Sound becomes a hazardous noise pollution it its level is above :

Question : Sorghum is native to _________ continent.

Question : Sorghum and sugarcane plants show saturation at about

Question : Sophic was born with a genetic disorder - ADA deficiency. Can you suggest methods to treat this ADA deficiency?

Question : Sophic was born with a genetic disorder - ADA deficiency. What is ADA deficiency?

Question : Sonalika and Kalyansona are the semi-dwarf, high yielding varieties of ……….. .

Question : Sonalika and Kalyan sona are varries of

Question : Sonalika and Kalyan Sona are varieties of

Question : Sometimes the own body cells attack on the body what is called it ?

Question : Sometimes the thalamus project in to the ovary nad the carpels remain attached on it this structure is called

Question : Sometimes due to biotic/abiotic factor the climax remain in a particular seral stage (pre climax without reaching climax. Do you agree with this statement. If yes give a suitable example.

Question : Sometimes, DNA brought by the phase does not integrate with the genome of the recipient bacterium and is lost after one or two generations such genetic recombination is called

Question : Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/ position of eye(s) etc. Comment.

Question : Some traits in human beings show criss-cross inheritance. Name any two such traits. With a suitable cross show the inheritance of any one of such traits which result in one-fourth of the progeny with the genetic defect.

Question : Some type of orchids live on the branches of mango trees.The relationship between mango tree and orchid is an example.

Question : Some types of orchids live on the branches of mango tree. The relationship between mango tree and orchids is an example of _____ (i) Mutualism (ii) Predation (iii) Commensalism (iv) Parasitism

Question : Some times genetically modified organisms will make unpredictable results in future. Which is the organisation of Govt. Of India monitor the validity of GM research.

Question : Some technique commonaly used for infertility treatment are given below.Read them carefully and answer the question.,ZIFT,GIFT,ICSI,IUI,IVFWhich the common term used to denote the technique given above.

Question : Some technique commonly used for infertility treatment are given below. Read them carefully and answer the question.ZIFT,GIFT,ICSI,IUI,IVFDistinguish between ZIFT and GIFT.

Question : Some pollen grains cannot germinate on stigmatic surface due to the loss of viability. Name the factors influence the viability of pollen.

Question : Some plants have a habit of harbourign ants to save the plants from damgae by other animals which is know as

Question : Some plants can store ammonium ions, even though they are highly toxic. These plants are

Question : Some pollen grains cannot germinate on stigmatic surface due to the loss of viability. How do the pollen grains can keep up for many years.

Question : Some peoples live in area are subjected to allergic disease due to pollen grains. (b) Give an example for two disease?

Question : Some plants are used to extract chemicals used as drugs a. Mention the type of products extracted. b. Give some examples of this products and their uses.

Question : Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of four examples.

Question : Some organisms suspend their metabolic activities to survive in unfavourable conditions. Explain with the help of any four examples.

Question : Some organisms are called top carnivores. Why? Give some examples.

Question : Someorganisms like desert lizards lack the physiologicalabilities to copewithvariations in theirenvironmentbut showsomebehavioralresponses. Comment on.

Question : Some organisms are able to maintain homeostasis by physical means................

Question : Some organism are different in their toleration level to temperature fluctuations. Name the type of organism that can tolerate wide rang of temperature variation especially in increased global temperature?

Question : Some organism are different in their toleration level to temperature fluctuations.Name the other type of organism restricted to narrow range.

Question : Some organism are capable of producing fertilized egg but others are not possibleName the organism producing fertilized egg.

Question : Some of the most important symptoms of diseases caused by virus, fungi and nematodes are given below. writethe symptoms according to the pathogen in the table given below.

Question : Some of the nutrient cycle are labelled as below. Sulphur cycle(i), phosphorus cycle (ii),carbon cycle(iii)and nitrogen cycle(iv)of these, the sedimentrary cycle is represented by

Question : Some of the characteristics of Bt cotton are

Question : Some of the charcteristics of Bt cotton are

Question :Some of the characteristics of Bt-cotton are(A) Long fiber and resistance to aphids(B) Medium yield, long fiber and resistance to beetle pests.(C) High yield and production of toxic protein crystals which kill dipteran pests(D) High yield and resistance to boll worms

Question : Some multinational companies and other organisation are using bioresources for commercial benefits, Without proper anthentication and compensaition to concernet anthorities.(b) suggest any two ways to gets rid of this.

Question : Some multinational companies and other organisation are using bioresources for commercial benefits, Without proper anthentication and compensaition to concernet anthorities.(a) Give the trem for this unauthoriesed act.

Question : Some microorganisms live in our stomach and they play a very beneficial role in checking disease causing microbes these are

Question : Some individuals with blood group A may inherit the genes for blond hair, while other individuals with blood group A may inherit the genes for brown hair. This can be best explained by the principate of

Question : Some individuals with blood group A may inherit the genes for blond hair, while other individuals with blood group A may inherit the gene for brown hair. This can be best explained by the principle of