24277 + Interview Questions in Biology in Class 12 Page 287 InterviewSolution

14301.	Question : ............is a cooperative result of farmers, cattle keepers, workers, businessman and officers.
Answer» AGRICULTURE DAIRY INDUSTRY Dairy industry Poultry SOLUTION :Dairy industry

Discussion

14302.	Question : Lichen is considered as a good example of obligate mutualism. Explain.
Answer» Solution :Lichen is a MUTUAL association of an alga and a FUNGUS, where the algal PARTNER

Discussion

14303.	Question : ............is a carotenoid derivative of exine layer which provides resistance to pollen grains.
Answer» ANSWER :SPOROPOLLENIN

Discussion

14304.	Question : Lichen is an association between
Answer» FUNGI and bryophyte Fungi and algae Algae and PTERIDOPHYTE Algae and BACTERIA Solution :Fungi and algae

Discussion

14305.	Question : IRRI
Answer» SOLUTION : INTERNATIONAL RICE RESEARCH INSTITUTE

Discussion

14306.	Question : Liberation of O_2 when green cells in water are exposed to sunlight in the presence of suitable acceptor is called
Answer» Arnor's reaction Emerson's ehnhance effect Blackman's reaction Hill's reaction Answer :D

Discussion

14307.	Question : Irrespective of seasonal temperature changes the body temperature of humans remains ai 37°C. This is possible due to
Answer» EPITHALAMUS Hypothalamus Cerebrum DIENCEPHALON ANSWER :B

Discussion

14308.	Question : Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
Answer» SOLUTION :• This association is called commensalism. • Lianas get the support of the TREE without harming or providing BENEFIT to the tree.

Discussion

14309.	Question : Irregular bowel movement but solid faeces are egested in case of
Answer» DIARRHOEA Roughage consumption Constipation RICH FIBRE diet Answer :C

Discussion

14310.	Question : LH surge occurs during phase of menstrual cycle.
Answer» MENSTRUAL PHASE Beginning of proliferstive phase. Just before end of prodiferation phase At the middle of the CYCLE. ANSWER :D

Discussion

14311.	Question : iRNA is attached to mRNA by its
Answer» I loop II loop III loop IV loop Answer :B

Discussion

14312.	Question :Leydig cells secrete A under the influence ofBwhich is secreted by C . Choose the option which gives the correct answer for blanks in above statement
Answer» A- Estrogen B- FSH C - Poslenor pituitary A - ANDROGEN B - Testosterone C - Interstitial CELLS A - Testosterone B - LH C - Anterior pituitary A - Androgen B - LH C - Seminiferous TUBULES Answer :C

Discussion

14313.	Question : Irish moss is used to obtained:
Answer» AGAR agar Carrageenin Citric acid Aflatoxin Answer :B

Discussion

14314.	Question :Leydig cells synthesize androgens. (True/False)
Answer» ANSWER :1

Discussion

14315.	Question : Leydig cells arefound in ovary. (True/False)
Answer» SOLUTION :False. Leydig cells are found in TESTIS.

Discussion

14316.	Question : Irish moss is used to obtained :
Answer» AGAR agar Carrageenin Citric ACID AFLATOXIN ANSWER :B

Discussion

14317.	Question : Leydig cells
Answer» SOLUTION :Location : Leydig CELLS are located in the regions outside the seminiferous tubules called interstitial spaces. Function : It SECRETES androgens.

Discussion

14318.	Question : IR-8 variety belong to
Answer» Rice Wheat Maize Sugarcane Answer :A

Discussion

14319.	Question : IPM (Intergrated Pest Management) involves
Answer» TISSUE culture biological control biofertilizers confusion technique Answer :B

Discussion

14320.	Question : Lever mechanism of pollination is observed in........
Answer» SALVIA JASMINE BOUGAINVILLEA Butea ANSWER :a

Discussion

14321.	Question :IPM is...........(A) Indian Pest Control Management(B) Intimation Pest Control Management(C) Integrated Pest Control Management(D) Insect Pest Control Management
Answer» INDIAN PEST Control MANAGEMENT Intimation Pest Control Management Integrated Pest Control Management INSECT Pest Control Management Solution : Integrated Pest Control Management

Discussion

14322.	Question :Leydig cells are found in ovary.(True/False).
Answer» SOLUTION :It is FOUND in the TESTIS.

Discussion

14323.	Question :IPM (Integrated Pest Management) involves.(A) Biological Control(B) Pesticides(C) Confusion technique(D) Biofertilizers
Answer» BIOLOGICAL CONTROL Pesticides Confusion technique Biofertilizers Solution :Biological Control

Discussion

14324.	Question : Anemophilous pollination is mainly observed in
Answer» Salvia Jasmine Bougainvillea Butea Answer :A

Discussion

14325.	Question : Ions that must be present for binding the cross bridges is
Answer» `CA^++` `NA^+` `FE^++` `K^+` ANSWER :A

Discussion

14326.	Question : Leucocytes are responsible for humoral immune
Answer» T-lumphocytes B-lymphocytes Macrophages Neutrophils Answer :B

Discussion

14327.	Question : Invertebrates show which type of dispersion?
Answer» RANDOM UNIFORM Clumped REGULAR ANSWER :B

Discussion

14328.	Question : Lettuce seeds germinate only when
Answer» RED LIGHT is available Blue light is available Green light is available They are SOWN DEEP in the soil. Answer :A

Discussion

14329.	Question : ______involves the transfer of embryo at 8 -celled stage in the fallopian tube of the female.
Answer» ANSWER :ZIFT

Discussion

14330.	Question : Leucine in one of three amino acids whichare coded by 6 codons. The codons that code leucine are CUU, CUC, CUA, CUG, UUA, UUG How may minimum types of t RNA will be required for reading all codons of leucine ?
Answer» 1 2 4 6 Answer :B

Discussion

14331.	Question : Invasion of alien animal species eliminates the native animal species. Give two examples.
Answer» SOLUTION :Nile perch introduced into lake Vietoria in East Africa led extinetion of more than 200 species of cichlid FISH in the lake. ILLEGAL introduction of AFRICAN cat fish Clarias GARIEPINUS for aqua culture threat to the indigenous cat fishes of our rivers.

Discussion

14332.	Question : Letter s in structural unit of ribosome denotes
Answer» CONCENTRATION UNIT SVEDBERG unit Polymerisation unit Stability unit Answer :B

Discussion

14333.	Question : Lethal gene of Drosophila is
Answer» Curly WINGS (CY) PLUM eyes(Pm) STUBBLES(SUB) All of these Answer :D

Discussion

14334.	Question : Inulin is a polymer of
Answer» Fructose Glucose Ribose Sucrose Answer :A

Discussion

14335.	Question :Less proportion of BOD in water is proportional to...?(A) Proportion of water pollution is more(B) Proportion of water pollution is less(C) Quantity of organic substances is more(D) Water is not considered potable
Answer» PROPORTION of WATER POLLUTION is more Proportion of water pollution is less QUANTITY of organic substances is more Water is not CONSIDERED potable Solution :Proportion of water pollution is less

Discussion

14336.	Question : Inversion without involving the centromere is called
Answer» Paracentric Monosomy Pedricentric Tautomerization Answer :A

Discussion

14337.	Question : Lesch Nyhan disease in an X - linked recessive disorderthat causes nuerological damage in human beings . A survey of 500mates from a caucasion population revealed that 20 were effected with thisdisorder. What is the frequency ofthe normal allele in this population .
Answer» `9 . 6` `0 . 8` `0 .096` 96 Answer :B

Discussion

14338.	Question : Lesch Nyhan disease is an X-linked recessive disorder that causes neurological damage in human beings. A survey of 500 males from a caucasion population revealed that 20 were effected with this disorder. What is the frequency of the normal allele in this population ?
Answer» `9.6` `0.8` `0.096` `96` ANSWER :B

Discussion

14339.	Question : Inulin found in plant cell is a
Answer» polysaccharides Monosaccharides Lipid Protein Answer :A

Discussion

14340.	Question : Lesion in ventromedial hypothalamus:
Answer» INCREASE HUNGER Decrease hunger Do not CHANGE hunger stop eating Answer :B

Discussion

14341.	Question : Lenticles and hydathodes are small pores with following common attributes
Answer» their OPENING and CLOSING is not regulated they allow exchange of gases they always remain closed they are FOUND on the same organ of plants Answer :A

Discussion

14342.	Question : Inulin, a lower molecular weight polysaccharide is obtained from roots of
Answer» Dahlia Raphanus Tapioca Colchicum Answer :A

Discussion

14343.	Question : Lenticels on woody stems help in
Answer» Transpiration Exchange of gases Photosynthesis 1 and 2 Answer :D

Discussion

14344.	Question : Lens of eye develops from
Answer» ENDODERM ECTODERM and mesoderm Ectoderm Mesoderm ANSWER :C

Discussion

14345.	Question : Introduction of transgenes will result in ………….
Answer» Formation of new SPECIES Formation of new protein After a BIOSYNTHETIC PATHWAY Both B and C SOLUTION :Both B and C

Discussion

14346.	Question :Lens and retina of vertebrate eye develop from
Answer» MESODERM ECTODERM ENDODERM PARTLY from ectoderm and partly from endoderm Answer :C

Discussion

14347.	Question : Lens in eye of cockroach is secreted by
Answer» Corneagen cells Cone cells Retinular PIGMENT sheath Retinular cells Answer :A

Discussion

14348.	Question : Intron part of DNA codes for :
Answer» Carbohydrate Lipid Polypeptide None Answer :D

Discussion

14349.	Question : One turn of helix of a B-DNA is approximately:
Answer» ANSWER :34A0

Discussion

14350.	Question : Introduction of transgenes will result in
Answer» FORMATION of a NEW species Formation of a new protein Alter a biosynthetic pathway Both B and C Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question : ............is a cooperative result of farmers, cattle keepers, workers, businessman and officers.

Question : Lichen is considered as a good example of obligate mutualism. Explain.

Question : ............is a carotenoid derivative of exine layer which provides resistance to pollen grains.

Question : Lichen is an association between

Question : IRRI

Question : Liberation of O_2 when green cells in water are exposed to sunlight in the presence of suitable acceptor is called

Question : Irrespective of seasonal temperature changes the body temperature of humans remains ai 37°C. This is possible due to

Question : Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.

Question : Irregular bowel movement but solid faeces are egested in case of

Question : LH surge occurs during phase of menstrual cycle.

Question : iRNA is attached to mRNA by its

Question :Leydig cells secrete A under the influence ofBwhich is secreted by C . Choose the option which gives the correct answer for blanks in above statement

Question : Irish moss is used to obtained:

Question :Leydig cells synthesize androgens. (True/False)

Question : Leydig cells arefound in ovary. (True/False)

Question : Irish moss is used to obtained :

Question : Leydig cells

Question : IR-8 variety belong to

Question : IPM (Intergrated Pest Management) involves

Question : Lever mechanism of pollination is observed in........

Question :IPM is...........(A) Indian Pest Control Management(B) Intimation Pest Control Management(C) Integrated Pest Control Management(D) Insect Pest Control Management

Question :Leydig cells are found in ovary.(True/False).

Question :IPM (Integrated Pest Management) involves.(A) Biological Control(B) Pesticides(C) Confusion technique(D) Biofertilizers

Question : Anemophilous pollination is mainly observed in

Question : Ions that must be present for binding the cross bridges is

Question : Leucocytes are responsible for humoral immune

Question : Invertebrates show which type of dispersion?

Question : Lettuce seeds germinate only when

Question : ______involves the transfer of embryo at 8 -celled stage in the fallopian tube of the female.

Question : Leucine in one of three amino acids whichare coded by 6 codons. The codons that code leucine are CUU, CUC, CUA, CUG, UUA, UUG How may minimum types of t RNA will be required for reading all codons of leucine ?

Question : Invasion of alien animal species eliminates the native animal species. Give two examples.

Question : Letter s in structural unit of ribosome denotes

Question : Lethal gene of Drosophila is

Question : Inulin is a polymer of

Question :Less proportion of BOD in water is proportional to...?(A) Proportion of water pollution is more(B) Proportion of water pollution is less(C) Quantity of organic substances is more(D) Water is not considered potable

Question : Inversion without involving the centromere is called

Question : Lesch Nyhan disease in an X - linked recessive disorderthat causes nuerological damage in human beings . A survey of 500mates from a caucasion population revealed that 20 were effected with thisdisorder. What is the frequency ofthe normal allele in this population .

Question : Lesch Nyhan disease is an X-linked recessive disorder that causes neurological damage in human beings. A survey of 500 males from a caucasion population revealed that 20 were effected with this disorder. What is the frequency of the normal allele in this population ?

Question : Inulin found in plant cell is a

Question : Lesion in ventromedial hypothalamus:

Question : Lenticles and hydathodes are small pores with following common attributes

Question : Inulin, a lower molecular weight polysaccharide is obtained from roots of

Question : Lenticels on woody stems help in

Question : Lens of eye develops from

Question : Introduction of transgenes will result in ………….

Question :Lens and retina of vertebrate eye develop from

Question : Lens in eye of cockroach is secreted by

Question : Intron part of DNA codes for :

Question : One turn of helix of a B-DNA is approximately:

Question : Introduction of transgenes will result in