24277 + Interview Questions in Biology in Class 12 Page 99 InterviewSolution

4901.	Question : The puffed up appearance of dough which is used for making 'dosa' and 'Idli', is dueto the production of :-
Answer» `O_2` `CO_2` `CH_4` `N_2` ANSWER :B

Discussion

4902.	Question : The puffed-up appearance of dough is due to the production of CO_2 gas. What are the end products of this process ?
Answer» SOLUTION :ETHANOL and `CO_2`

Discussion

4903.	Question : The puffed-up appearance of dough is due to the production of CO_2 gas. Can you tell which metabolic pathway is taking place resulting in the formation of CO_2 ?
Answer» SOLUTION :ALCOHOLIC fermenation

Discussion

4904.	Question : The pulse pressure of human :-
Answer» 80 mmHg 40 mmHg 120 mmHg 70 mmHg Answer :B

Discussion

4905.	Question : The Psi_(W) value of A and B cells at equilibrium,If they have pi and P value as follows Cell Ato pi=-1.8 Mpa, P=+0.6 Mpa, Cell B to =-1.2 Mpa, P=+0.8 Mpa
Answer» `-1.2 MPA` `-0.8 Mpa` `0.4 Mpa` `1.6Mpa` ANSWER :B

Discussion

4906.	Question : The puffed-up appearance of dough is due to the production of CO_2 gas. Can you tell which metabolic pathway is taking place resulting in the formation of CO_2?
Answer» SOLUTION :ALCOHOLIC FERMENTATION

Discussion

4907.	Question : The process of formation of fruits without fertilization is called
Answer» Parthenogenesis Parthenocarpy Apomixis Autogamy Answer :B

Discussion

4908.	Question : The protoplasmic streaming hypothesis for food translocation has not been accepted on the following grounds.
Answer» It can not EXPLAIN bi-direction movement Mature sieve elements do not show streaming It can not explain FASTER RATE of translocation All of the above Answer :A

Discussion

4909.	Question : The protons and oxygen formed during photolysis of water are released
Answer» WITHIN the THYLAKOID lumen Outside the chloroplast In the STROMA of the chloroplast In the VACUOLE of the cell Answer :A

Discussion

4910.	Question : The proteins responsible for rejection present in exine cavities of pollen is a derivative of ...............
Answer» STOMIUM ENDOTHECIUM TAPETUM Ubisch bodies Answer :C

Discussion

4911.	Question : The proteinoid colloidal aggregate obtained by Sydney Fox are
Answer» COACERVATES MICROSPHERES Coacervates DROPLETS Colloids Answer :B

Discussion

4912.	Question : The proteinaceous substance substance involvedin sporophytic incompatibility and stored in the exine is derived from
Answer» Tapetum Microspore Anther locule Stigmatic papillae Answer :A

Discussion

4913.	Question : The protein primarily involved in the maintenance of circulatory blood is
Answer» Fibrogen Prothombin Albumin Fibrin Answer :C

Discussion

4914.	Question : The protein present in wheat grain is
Answer» Glutenin Albumin Globulin Tubulin Answer :A

Discussion

4915.	Question : The protein deposited in the dead superficial cells that makes the skin epithelium impervious to water is –
Answer» Mucus Elastin Keratin Collagen Answer :C

Discussion

4916.	Question : The protection provided by the mucous membrane against pathogenic invasion is not enough. The mere ingestion of tubercle bacilli or picornaviruses in sufficient numbers will lead to penetration of GIT mucosa. A similar penetration of respiratory tract by___ can occur following a heavy exposure to these pathogens:
Answer» Pneumococci Rhinoviruses Salmonella Both 1 and 2 Answer :D

Discussion

4917.	Question : The protein content of blood pressure is
Answer» 70-75 percent 20-25 percent 15-20 percent 6-8 percent Answer :A

Discussion

4918.	Question : The protein coat of a virus is known as:
Answer» Capsid Viroid Virion Mesosome Answer :A

Discussion

4919.	Question : The proportion of the plants that Mendel found on self-pollination of F_(1) plants, was
Answer» 1/4th TALL and 3/4 DWARF 1/4 thdwarf and 3/4th tall 1/4th dwarf, 1/2th HYBRID and 1/4tall 1/2 dwarf, 1/2th hybrid and 1/4th tall ANSWER :C

Discussion

4920.	Question : The prosthetic group which is a complex organic molecule.
Answer» ANSWER :COENZYME

Discussion

4921.	Question : The proportion of 3:1 at the F_(2) generation is explained by the
Answer» Law of DOMINANCE Law of Segregation Law of INDEPENDENT assortment Test CROSS Solution :The law of dominance is USED to explain the expression of only one of the parental characters in a MONOHYBRID cross in the `F_(1)` and the expression of both in the `F_(2)`. It also explains the proportion of 3:1 obtained at the `F_(2)`.

Discussion

4922.	Question : The proportion of dihybrids in the F_2 generation of a monohybrid cross ________proportion of dihybrids in the F_2 generation of a dihybrid cross
Answer» is same as is GREATER than is LESSER than MAY be same or greater but nevre lesser than ANSWER :B

Discussion

4923.	Question : The property of a genetic marker
Answer» POLYMORPHISM MONOMORPHISM ALWAYS with a KNOWN function Always a repertitive sequence Answer :A

Discussion

4924.	Question :The promoter site and the terminator site for transcription are located at :
Answer» 3' ( downstream ) END and 5' ( upstream ) end RESPECTIVELY of the transcription unit 5' ( upstream ) end and 3' ( downstream ) end , respectively of the transcription unit The 5' ( upstream ) end The 3' ( downstream ) end Answer :C

Discussion

4925.	Question : The promoter site and the terminator site for transcription are located at
Answer» 3' (DOWNSTREAM ) END and 5' (upsteam ) end , RESPECTIVELY of the transcription unit 5' (UPSTREAM ) end and 3' (downsteam ) end , respectively of the transcription unit the 5' (upstream) end the 3' (downstream )end Answer :b

Discussion

4926.	Question : The promoter region of eukaryote is …………………
Answer» a) TATAA b) AUGUT C) UUUGA d) AAAAU Solution :TATAA

Discussion

4927.	Question : The products of ecosystem processes are named as ecosystem services. List out any four such services.
Answer» SOLUTION :Purify the AIR water Maintain BIODIVERSITY REDUCE global warming Provide wildlife habitat

Discussion

4928.	Question : The products of ecosystem processes are named as ecosystem services. Give any five services of ecosystem.
Answer» SOLUTION :a. Purification of AIR and water. b.Mitigates DROUGHT and flood c.Cycles nutrients d.Cycles nutrients d.Maintains biodiversity e.Provides wildlife HABITAT.

Discussion

4929.	Question : The products of ecosystem processeare named as ecosystem services . List out four such services.
Answer» SOLUTION :(i) Supporting services e.g. nutrient cycling (II) Provisioning services e.g. food supplying (III) CLIMATE regulating services. (iv) Cultural services e.g. , social forestry.

Discussion

4930.	Question : The productivity of which region is medium ?
Answer» Forest area DESERT Aquatic habitat Grass region SOLUTION :Grass region

Discussion

4931.	Question : The production of secondary metabolites require the use of……………
Answer» Protoplast culture ORGAN culture Cell SUSPENSION culture Virus free GERM culture ANSWER :C

Discussion

4932.	Question : The production of ATP by oxidative phosphorylation is driven by energy from
Answer» coenzyme A cytochromes formation of NADH diffusion of protons from INTER MEMBRANE SPACE to the MATRIX of mitochondrion Answer :D

Discussion

4933.	Question : The production of new characteristics by introducing new genes and alternign the genome is called:
Answer» Spilcing Genetics Gene manipulation Totipotency Answer :C

Discussion

4934.	Question : The product which was observed and obtained during Miller's experiment was
Answer» Turbid RED liquid Ammonia RIBOSOMES Valine ANSWER :A

Discussion

4935.	Question : In phenylketonuria :-
Answer» Solution : It is a rare disease in which individual LACKS an enzyme called Phenylalanine hydroxylase. Which is needed to breakdown an essential amino acid phenylalanine into tyrosine in LIVER. This phenylalanine is accumulated and gets converted into phenylpyruvic acid and other derivatives leading to mental retardation (DUE to accumulation in brain). These are also excreted through urine because of its poor absorption by KIDNEY.

Discussion

4936.	Question : The product of conjugation in Spirogyra or fertilisation of Chlamydomonas is
Answer» zygospore zoospore oospore carpospore Solution :(a) Zygospore (zygote) is the fusion product of two gametes.It infact, represents the resting STAGE formed after withdrawlof flagella ad formation of a thick wall around the freshly formed zygote.Zygospore is spherical with thick, smootth or stellate wall and contains fatsand reserve food materialsother than STARCH.It can resist unfavourable conditions.InChlamydomonas, zygospore is the resultant of isogamy, anisogamy or oogamy.In Spirogyra SEXUAL reproduction occurs through conjugation, which MAY be scalariform or LATERAL. The resulting, zygote secretes a thick wall called zygospore (having 3 layers thick wall, diploid nucleus and abundant food reserves in the form of oil and starch).

Discussion

4937.	Question : The substrate for final decarboxylation reaction of aerobic respiration is
Answer» `alpha` ketoglutaric DEHYDROGENASE Succinic dehydrogenase Succinic thiokinase Citric SYNTHETASE Answer :C

Discussion

4938.	Question : The processing of milk by factory system was started in which century ?
Answer» 18TH 19TH 20TH 21TH SOLUTION :19th

Discussion

4939.	Question : The processes of structural gene regulated by operator site is regulated by what ?
Answer» STRUCTURAL protein Repressor protein PROMOTER Regulatory GENE Solution :Repressor protein

Discussion

4940.	Question : The processed genetically engineered insulin contains
Answer» A POLYPEPTIDE chain B polypeptide chain c peptide both a and b Answer :D

Discussion

4941.	Question : The process which the sperm undergoes before penetrating the ovum is
Answer» Spermiation Cortical reaction Spermiogenesis CAPACITATION SOLUTION :Capacitation

Discussion

4942.	Question : The process which makes major difference between C_(3) and C_(4) plants is:-
Answer» glycolysis Calvin cycle Photorespiration respiration Solution :Photorespiration is the process which makes a difference between the `C_(3) and C_(4)`-plants. In this process, there is a continuous loss of carbon fixed in the form of `CO_(2)`. It occurs due to the high `O_(2) ` content, high temperature CONDITIONS in which RuBP carboxylase starts WORKING as RuBP OXYGENATE and normal PHOTOSYNTHESIS does not occur.

Discussion

4943.	Question : The process which changes the Zygotes to blastulais called_____.
Answer» ANSWER :CLEAVAGE

Discussion

4944.	Question : The process that provides both energy and manure is
Answer» Burning of FUEL WOOD Pyrolysis of wood GASIFICATION of wood and wood SHAVINGS Biogas FORMATION Solution :N//A

Discussion

4945.	Question : The process of transmision of parental characters to the offspring is
Answer» Variations Heredity Mendelism Hybridization Answer :B

Discussion

4946.	Question : The process of translation to synthesize a protein is regulated by which gene ?
Answer» PROMOTER GENE Regulatory gene OPERATOR gene REPRESSOR gene SOLUTION :Operator gene

Discussion

4947.	Question : The process of transformation was discovered by
Answer» MAURICE H.F. Wilkins and Rosalind E. Franklin M. Meselson and F.W. STAHL JAMES WATSON and FRANCIS Crick Fredrick Griffith Answer :D

Discussion

4948.	Question : The process of transfer of DNA pieces on to the surface of the nylone membrane is called
Answer» blotting gel electrophoresis autoradiography ISOLATION of DNA from the sample Answer :A

Discussion

4949.	Question : The process of transfer of genetic information is :
Answer» Transversion Transcription inversion Translocation ANSWER :B

Discussion

4950.	Question : The process of the development of embryo from the zygote is called
Answer» Gametogenesis Sporogenesis Embryogenesis Oogenesis Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : The puffed up appearance of dough which is used for making 'dosa' and 'Idli', is dueto the production of :-

Question : The puffed-up appearance of dough is due to the production of CO_2 gas. What are the end products of this process ?

Question : The puffed-up appearance of dough is due to the production of CO_2 gas. Can you tell which metabolic pathway is taking place resulting in the formation of CO_2 ?

Question : The pulse pressure of human :-

Question : The Psi_(W) value of A and B cells at equilibrium,If they have pi and P value as follows Cell Ato pi=-1.8 Mpa, P=+0.6 Mpa, Cell B to =-1.2 Mpa, P=+0.8 Mpa

Question : The puffed-up appearance of dough is due to the production of CO_2 gas. Can you tell which metabolic pathway is taking place resulting in the formation of CO_2?

Question : The process of formation of fruits without fertilization is called

Question : The protoplasmic streaming hypothesis for food translocation has not been accepted on the following grounds.

Question : The protons and oxygen formed during photolysis of water are released

Question : The proteins responsible for rejection present in exine cavities of pollen is a derivative of ...............

Question : The proteinoid colloidal aggregate obtained by Sydney Fox are

Question : The proteinaceous substance substance involvedin sporophytic incompatibility and stored in the exine is derived from

Question : The protein primarily involved in the maintenance of circulatory blood is

Question : The protein present in wheat grain is

Question : The protein deposited in the dead superficial cells that makes the skin epithelium impervious to water is –

Question : The protein content of blood pressure is

Question : The protein coat of a virus is known as:

Question : The proportion of the plants that Mendel found on self-pollination of F_(1) plants, was

Question : The prosthetic group which is a complex organic molecule.

Question : The proportion of 3:1 at the F_(2) generation is explained by the

Question : The proportion of dihybrids in the F_2 generation of a monohybrid cross ________proportion of dihybrids in the F_2 generation of a dihybrid cross

Question : The property of a genetic marker

Question :The promoter site and the terminator site for transcription are located at :

Question : The promoter site and the terminator site for transcription are located at

Question : The promoter region of eukaryote is …………………

Question : The products of ecosystem processes are named as ecosystem services. List out any four such services.

Question : The products of ecosystem processes are named as ecosystem services. Give any five services of ecosystem.

Question : The products of ecosystem processeare named as ecosystem services . List out four such services.

Question : The productivity of which region is medium ?

Question : The production of secondary metabolites require the use of……………

Question : The production of ATP by oxidative phosphorylation is driven by energy from

Question : The production of new characteristics by introducing new genes and alternign the genome is called:

Question : The product which was observed and obtained during Miller's experiment was

Question : In phenylketonuria :-

Question : The product of conjugation in Spirogyra or fertilisation of Chlamydomonas is

Question : The substrate for final decarboxylation reaction of aerobic respiration is

Question : The processing of milk by factory system was started in which century ?

Question : The processes of structural gene regulated by operator site is regulated by what ?

Question : The processed genetically engineered insulin contains

Question : The process which the sperm undergoes before penetrating the ovum is

Question : The process which makes major difference between C_(3) and C_(4) plants is:-

Question : The process which changes the Zygotes to blastulais called_____.

Question : The process that provides both energy and manure is

Question : The process of transmision of parental characters to the offspring is

Question : The process of translation to synthesize a protein is regulated by which gene ?

Question : The process of transformation was discovered by

Question : The process of transfer of DNA pieces on to the surface of the nylone membrane is called

Question : The process of transfer of genetic information is :

Question : The process of the development of embryo from the zygote is called