24277 + Interview Questions in Biology in Class 12 Page 199 InterviewSolution

9901.	Question : Production of ADH, monitoring of body temperature and blood pressure are mainly controlled by -
Answer» Cerebellum Cerebrum hypothalamus Medulla Answer :C

Discussion

9902.	Question : Production of Bt cotton was done by :
Answer» INSERTION of an INACTIVE cry gene in cotton making boll worms RESISTANT against Bt toxin making the cotton plant an insecticide Introduction of cry I AB in cotton Answer :B

Discussion

9903.	Question : Production of a human protein in bacteria by genetic engineering is possible because(A) The human chromosome can replicate in bacterial cell(B) The mechanism of gene regulation is identical in humans and bacteria(C) Bacterial cell can carryout the RNA splicing reactions(D) The genetic code is universal.
Answer» The human chromosome can replicate in BACTERIAL cell The mechanism of generegulation is identicalin HUMANS and bacteria Bacterial cell can carryout the RNA SPLICING reactions The genetic CODE is universal. SOLUTION :The genetic code is universal.

Discussion

9904.	Question : Production of a human protein in bacteria by genetic engineering is possible because:
Answer» bacterial cell can carry out the RNA SPLICING reactions the HUMAN chromosome can replicate in bacterial cell the mechanism of gene REGULATION is identical in humans and bacteria the genetic CODE is universal Answer :D

Discussion

9905.	Question : Production of a human protein in bacteria by genetic engineering is possible because :
Answer» bacterial cell can carry out the RNA SPLICING reaction the HUMAN chromosome can replicate in bacterial cell the MECHANISM of GENE regulation is identical in human and bacteria the genetic code is universal Answer :D

Discussion

9906.	Question :Product of sexual reproduction generally generates
Answer» Prolonged dormancy New GENETIC COMBINATION LEADING to variation Large biomass Longer viability of seeds Answer :B

Discussion

9907.	Question : Product of sexual reproduction generally generates(A) Prolonged dormancy(B) New genetic combination leading to variation(C) Large biomass(D) Longer viability
Answer» Prolonged dormancy New genetic combination leading to variation LARGE biomass LONGER viability Answer :B

Discussion

9908.	Question : Product of sexual reproduction generally generates.
Answer» Prologned DORMANCY New GENETIC combination leading to variation Large biomass Longer viability of seeds Answer :B

Discussion

9909.	Question : Product of sexual reproduction generally generates (A) longer viability of seeds (B) prolonged dormancy (C) new genetic combination leading to variation (D) large biomass
Answer» longer viability of seeds PROLONGED DORMANCY NEW genetic COMBINATION leading to variation large biomass Answer :C

Discussion

9910.	Question : Product of first biological oxidation in Krebs cycle is
Answer» Isocitric ACID Oxalosuccinic acid `ALPHA`-Ketoglutaric acid Succinic acid ANSWER :B

Discussion

9911.	Question : Product of biotechnology is(A) Transgenic crop(B) Biofertilizer(C) Humulin(D) All of these
Answer» TRANSGENIC crop Biofertilizer HUMULIN All of these SOLUTION :All of these

Discussion

9912.	Question : Product of biotechnology is
Answer» Transgenic CROPS (GM crops) HUMULIN Biofertiliser All of the above Answer :D

Discussion

9913.	Question : Product of biotechnology is(A) Transgenic crop(B) Biofertilizer(C) Humulin(D) All of the above
Answer» TRANSGENIC CROP BIOFERTILIZER HUMULIN All the above Solution :All the above

Discussion

9914.	Question : Producers occuring deep in the oceans are
Answer» CHEMOAUTOTROPHS CHEMOHETEROTROPHS PHOTOAUTOTROPHS Photoheterotrophs Answer :A

Discussion

9915.	Question : Producer: Autotrophs Consumer : _____
Answer» SOLUTION :HETEROTROPHS

Discussion

9916.	Question : Procnsuls areancestors of
Answer» apes only MAN only both (1) and (2) all primates ANSWER :D

Discussion

9917.	Question : Processes occur in leaves, which may lower their temperature is
Answer» RESPIRATION PHOTOSYNTHESIS HYDROLYSIS Transpiration Answer :D

Discussion

9918.	Question : Process of which substance by methanogens bacteria gives methane in a larger quantity ?(A) Starch(B) Cellulose(C) Suberin(D) Lignin
Answer» Starch CELLULOSE Suberin Lignin SOLUTION :Cellulose

Discussion

9919.	Question : Processes of osteocytes lie in
Answer» Dendrites Haversian canal Canaliculi Lamella Answer :C

Discussion

9920.	Question : Describe the process of urine formation in kidneys.
Answer» Solution :Urine formation takes place in three stages.These are ultrafiltration.selective reabsorption and tubular secrection.(I)Ultrafiltration:(1)Outer partietal layer and inner VISCERAL layer of Bowman's capsule enclose a space called urinary space.The inner visceral layer contains podocytes which are specialized cells.Here ultrafiltration takes place.(2)Due to SEMIPERMEABLE glomerular endothelial membrane.Low miolecule weight substance along with water other substances are pilled ou of the blood and ENTER into urinary space.This filtrate is blood plasma except protiens and blood corpuscles.This is a physical PROCESS.(II)Selective reabsorption:(1)In this process 99% of the filtrate is reabsorbed.(2There are two process involved in this step:Passive transport or osm osis and active transport.Active transport uses ATP Molecules SINCE it is against the concentration gradient.(3)When the filtrate passes through the renal tubule there is exchange of substances between the surrounding blood and renal tubular fluid.Useful substances are reabsorbed while nitrogenous waste products are sent further.(III)Tubular secretion:(1)Some abnormal and unwanted substances which have passed into pertitubular capillaries are secreted back in DCT,During this process.(2)Nitrogenous substances like creatinine and ions like potassium and hydrogen are also taken back in the lumen of uriniferous tubule through the peritubular capillaries.(3)If any toxic and abnormal constituent is present in the body it is secreted back into urine ,in this stage.

Discussion

9921.	Question : Process of sexual reproduction which involves meiosis and syngamy is
Answer» APOMIXIS AMPHIMIXIS AGAMOSPERMY Diplospory Answer :B

Discussion

9922.	Question : process of transfer of rDNA into bacterial host cell.
Answer» SOLUTION :TRANSFORMATION.

Discussion

9923.	Question : Process of self-destruction of cell by release of lysosome enzymes in the cell itself is called_____
Answer» ANSWER :AUTOLYSIS

Discussion

9924.	Question : Process of senscence in plants can be reversed by application of:
Answer» Auxin Gibberellin Ethylene Cytokinin Answer :D

Discussion

9925.	Question : The process of removal of introns and joining of exons is called
Answer» SOLUTION :SPLICING

Discussion

9926.	Question : Heating biomass in a low oxygen environment represents …………………. .
Answer» SOLUTION :PYROLYSIS

Discussion

9927.	Question : Process of genetic mutation is
Answer» REVERSIBLE IRREVERSIBLE PARTIALLY reversibvle CONTINUOUS. ANSWER :D

Discussion

9928.	Question : Process of fusion of haploid cells is(A) Cell cycle(B) Meiosis(C) Mitosis(D) Syngamy
Answer» CELL cycle meiosis mitosis SYNGAMY ANSWER :D

Discussion

9929.	Question : Process of formation of seed (embryo) directly form the egg without fertilization.
Answer» ANSWER :PARTHENOGENESIS

Discussion

9930.	Question : Process of formation of pollen grains is the anther.
Answer» ANSWER :MICROSPOROGENESIS

Discussion

9931.	Question : Process of formation of RNA on DNAstrand.
Answer» ANSWER :TRANSCRIPTION

Discussion

9932.	Question : Process of crossing two or more types of plants
Answer» SOLUTION :HYBRIDIZATION.

Discussion

9933.	Question : Process of degradation of glucose to pyruvic acid.
Answer» ANSWER :GLYCOLYSIS

Discussion

9934.	Question : Process of crossing between genetically dissimliar organisms.
Answer» ANSWER :HYBRIDIZATION

Discussion

9935.	Question : Process of coming out of water from a plant cell when placed in a hypertonic solution.
Answer» ANSWER :EXOSMOSIS

Discussion

9936.	Question : Process by which Graffian follicles are formed in the ovary is known as
Answer» Oogenesis Luteinisation Folliculogenesis All Answer :C

Discussion

9937.	Question : Process of bringing wild species of palnts under cultivation of suit human needs is called.
Answer» Domestication Selection Cultivation Hybridization Answer :A

Discussion

9938.	Question : Process by which we can add or delete certain gene is:
Answer» GENE therapy Biotechnology Genetic engineering Cytogenetics Answer :C

Discussion

9939.	Question : Process by which plantlets in tissue culture are gradually exposed to normal field condition __________.
Answer» ANSWER :HARDENING

Discussion

9940.	Question : Proces that increases oxygen flow to accelerate the degradation of environmental pollutants is ______
Answer» Mycoremdiation BIOVENTING PHYTOREMEDIATION Rhizofiltration SOLUTION :N/A

Discussion

9941.	Question : Procbiotics are :
Answer» Cancer-inducing microbes Safe antibioties Live MICROBIAL FOOD supplements Food ALLERGENS Solution :Food allergens

Discussion

9942.	Question : Procaryotes which can trap solar energy for ATP synthesis but not for photosynthesis are
Answer» Methanogens Thermoacidophiles Halophiles Cyanochloronta. Answer :C

Discussion

9943.	Question : Probability of having similar sets of VNTR's in any two individuals is ……….. .
Answer» ONE in 300 million one in 200 million one in 100 million one in 10000 million Answer :A

Discussion

9944.	Question : Probiotics are
Answer» New KIND of FOOD allergens Safe antibiotics Live MICROBIAL food supplement Cancer INDUCING microbes Answer :C

Discussion

9945.	Question : Probability of genotype TTrr in F_2 - generation of a dihybrid cross is :
Answer» `1//16` `3//16` `9//16` `6//16` ANSWER :A

Discussion

9946.	Question : Pro-insulin consists of
Answer» A-peptide A and B peptide A, B and C peptides Only C-peptide Answer :C

Discussion

9947.	Question : priorto a sportsevant bloodandurine sampleofsportspersonsarecollectedfordrug tests. (a)whyis there a need to conduct suchtests ? (b)namethedrugs theauthoritiesusually look for ( C)write thegeneric names of two plantsfrom whichthesedrugs areobtained.
Answer» Solution :thesetests are conductedtocheck themisuse of drugs that areusedbysportspersons toenhancetheir performance . (i)Narcotic analgescis (ii)anabolicsteroids (iii) Diuretics (IV)cannabinoids (V)HORMONES (vi)cocaine ( c)the plants fromwhichthesedrugs are OBTAINED are : 1.Cannabis sataiva 2.Erythroxylum coca.

Discussion

9948.	Question : Prior to sowing rice, why was a legume crop cultivated and ploughed back into the field?
Answer» Solution : The PLOUGHED plants are converted into manure and they fertilise SOIL by providing ORGANIC as well as inorganic components.

Discussion

9949.	Question : Prions are
Answer» LARGER than viruses Abnormally FOLDED GENETIC material Causal agent of mad cow disease Devoid of proteins Answer :A

Discussion

9950.	Question : Principle of______was established by Mendel's monohybrid cross.
Answer» ANSWER :SEGREGATION

Discussion

Explore topic-wise InterviewSolutions in .

Question : Production of ADH, monitoring of body temperature and blood pressure are mainly controlled by -

Question : Production of Bt cotton was done by :

Question : Production of a human protein in bacteria by genetic engineering is possible because:

Question : Production of a human protein in bacteria by genetic engineering is possible because :

Question :Product of sexual reproduction generally generates

Question : Product of sexual reproduction generally generates(A) Prolonged dormancy(B) New genetic combination leading to variation(C) Large biomass(D) Longer viability

Question : Product of sexual reproduction generally generates.

Question : Product of sexual reproduction generally generates (A) longer viability of seeds (B) prolonged dormancy (C) new genetic combination leading to variation (D) large biomass

Question : Product of first biological oxidation in Krebs cycle is

Question : Product of biotechnology is(A) Transgenic crop(B) Biofertilizer(C) Humulin(D) All of these

Question : Product of biotechnology is

Question : Product of biotechnology is(A) Transgenic crop(B) Biofertilizer(C) Humulin(D) All of the above

Question : Producers occuring deep in the oceans are

Question : Producer: Autotrophs Consumer : _____

Question : Procnsuls areancestors of

Question : Processes occur in leaves, which may lower their temperature is

Question : Process of which substance by methanogens bacteria gives methane in a larger quantity ?(A) Starch(B) Cellulose(C) Suberin(D) Lignin

Question : Processes of osteocytes lie in

Question : Describe the process of urine formation in kidneys.

Question : Process of sexual reproduction which involves meiosis and syngamy is

Question : process of transfer of rDNA into bacterial host cell.

Question : Process of self-destruction of cell by release of lysosome enzymes in the cell itself is called_____

Question : Process of senscence in plants can be reversed by application of:

Question : The process of removal of introns and joining of exons is called

Question : Heating biomass in a low oxygen environment represents …………………. .

Question : Process of genetic mutation is

Question : Process of fusion of haploid cells is(A) Cell cycle(B) Meiosis(C) Mitosis(D) Syngamy

Question : Process of formation of seed (embryo) directly form the egg without fertilization.

Question : Process of formation of pollen grains is the anther.

Question : Process of formation of RNA on DNAstrand.

Question : Process of crossing two or more types of plants

Question : Process of degradation of glucose to pyruvic acid.

Question : Process of crossing between genetically dissimliar organisms.

Question : Process of coming out of water from a plant cell when placed in a hypertonic solution.

Question : Process by which Graffian follicles are formed in the ovary is known as

Question : Process of bringing wild species of palnts under cultivation of suit human needs is called.

Question : Process by which we can add or delete certain gene is:

Question : Process by which plantlets in tissue culture are gradually exposed to normal field condition __________.

Question : Proces that increases oxygen flow to accelerate the degradation of environmental pollutants is ______

Question : Procbiotics are :

Question : Procaryotes which can trap solar energy for ATP synthesis but not for photosynthesis are

Question : Probability of having similar sets of VNTR's in any two individuals is ……….. .

Question : Probiotics are

Question : Probability of genotype TTrr in F_2 - generation of a dihybrid cross is :

Question : Pro-insulin consists of

Question : priorto a sportsevant bloodandurine sampleofsportspersonsarecollectedfordrug tests. (a)whyis there a need to conduct suchtests ? (b)namethedrugs theauthoritiesusually look for ( C)write thegeneric names of two plantsfrom whichthesedrugs areobtained.

Question : Prior to sowing rice, why was a legume crop cultivated and ploughed back into the field?

Question : Prions are

Question : Principle of______was established by Mendel's monohybrid cross.