24277 + Interview Questions in Biology in Class 12

1.	Question : Gynaecomastia is the case arises by
Answer» INCREASE in the NUMBER of SEX chromosomes increase in the number of AUTOSOMES increase in the number of autosomes and sex chromosomes none of the above Answer :A

Discussion

2.	Question : Gynaecomastia is a common feature seen in
Answer» KLINEFELTER's syndrome Turner's syndrome PKU Cystic FIBROSIS

Discussion

3.	Question : Gymnosperms differ from grasses-in the
Answer» FORMATION of ENDOSPERM before fertilization Production of SEEDS fromovules Lack of XYLEM tracheids· Absence of POLLEN tubes Answer :A

Discussion

4.	Question : Gymnosperms bear seeds but lack fruits because they lack
Answer» Cotyledon Embryo Ovary Ovule Answer :C

Discussion

5.	Question : Gymnosperms are also called soft wood spermatophytes because they lack
Answer» cambium phloem fibres thick-walled tracheids XYLEM fibres Solution :(d) Gymnosperms lack xylem fibres.Large amout of parechymatous CELLS are present with SECONDARY xylem tracheids.So, these are also known as softwood spermatophytes.

Discussion

6.	Question : Guttation occurs throughthe pores called________.
Answer» ANSWER :HYDATHODES

Discussion

7.	Question : Guttation occurs through:
Answer» Stomata Hydathode Trichome Nectaris Answer :B

Discussion

8.	Question : Guttation is mainly due to:
Answer» Transpiration High ROOT pressure Closure of stomata Bleeding Answer :B

Discussion

9.	Question : Gubernaculum is a fibrous cord that connects
Answer» Caput-END of EPIDIDYMIS to SCROTAL wall Caput-end of epididymis to ABDOMINAL cavity Testes to abdominal cavity Caudal end of epididymis to scrotal wall Answer :D

Discussion

10.	Question : Guild is
Answer» Organism which have SIMILAR TROPHIC level Organism which have DIFFERENT trophic level Producers and consumer's of ecosystem Consumers of ecosystem Answer :A

Discussion

11.	Question : Guard cells in monocot leaves are :
Answer» Dumb-'bell shaped Kidney Shaped Isodiametric none of these Answer :A

Discussion

12.	Question : Guard cells cannot assimilate food, because of the absence of
Answer» PHOSPHATE dehydrogenase isomerase RuBisCO Both (a) and (C ) ANSWER :D

Discussion

13.	Question : Guanosine is a
Answer» Nucleoside Nilrogen base Nuclootide Pyrimidine Answer :A

Discussion

14.	Question : Guano deposits are rich in ……… .
Answer» sulphur phosphorus calcium magnesium Answer :B

Discussion

15.	Question : Growth rings are.formed due to activity of
Answer» PRIMARY CAMBIUM Intrastelar cambium Extrastelar cambium Fascicular cambium Answer :B

Discussion

16.	Question : Growth regulator_____ inhibits plant growth
Answer» ANSWER :abscisic ACID

Discussion

17.	Question : Growth regulator_____ induces parthenocarpy.
Answer» ANSWER :AUXIN

Discussion

18.	Question : Growth of lateral branches is promoted by:
Answer» REMOVAL of AXILLARY bud Auxin APPLICATION over DECAPITATED apex Auxin application over APICAL bud Removal of apical bud Answer :D

Discussion

19.	Question : Growth of a pollen tube is measured in terms of it's
Answer» ANSWER :LENGTH

Discussion

20.	Question : Growth is irreversible process found at organisation level
Answer» Subcellular growth Cellular growth Organ growth All the above Answer :D

Discussion

21.	Question : Growth of a population of an area depends upon
Answer» NATALITY IMMIGRATION ENVIRONMENTAL resistance All of these ANSWER :D

Discussion

22.	Question : Growth in living being in mainly by
Answer» ACCRETION Aggregation Intussusception Accumulation Answer :C

Discussion

23.	Question : Growth hormone of pituitary is more effective in :
Answer» PRESENCE of THYROXINE ABSENCE of thyroxine Absence of INSULIN Presence of adrenaline Answer :A

Discussion

24.	Question : Growth hormone from pituitary has its effect on metalbolism of
Answer» FAT Carbohydrate Protein All of the above Answer :4

Discussion

25.	Question : Growth curve is normally:
Answer» J-shaped V-shaped S-shaped C- shaped Answer :C

Discussion

26.	Question : Group the following as nitrogenous bases and nucleosides : Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
Answer» SOLUTION :Nitrogenous bases : ADENINE, CYTOSINE, Thymine and Uracil. NUCLEOSIDES : Guanosine and Cytidine.

Discussion

27.	Question : Group the following as nitrogenous bases and nucleosides:Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
Answer» Solution :Adenine, THYMINE, uracil and cytosine are NITROGENOUS BASES and cytidineand guanosine are NUCLEOSIDES.

Discussion

28.	Question : Group of two or more than two plant species is called as
Answer» PLANT COMMUNITY Animal community Plant ecosystem ECOLOGICAL niche ANSWER :A

Discussion

29.	Question : A group of animals of a species that live in a well-defined geographical area, share or compete for similar resources, potentially interbreed and thus constitute a
Answer» Group of individuals in a well DEFINED GEOGRAPHICAL area, SHARE or compete for similar resources, potentially interbreed, Group of individuals in a well defined geographical area, share or compete for similar resources, potentially interbreed, Group of individuals in a well defined geographical area, share or compete for similar resources, potentially interbreed, Group of individuals in a well defined geographical area, share or compete for similar resources, potentially interbreed, Solution :Population

Discussion

30.	Question : Groupof organisms ofthe samespeciesin a givenarea at a particulartimeis calledas
Answer» COMMUNITY ECOSYTEM BIOSPHERE population Answer :E

Discussion

31.	Question : Groundnut is native of .........
Answer» Philippines India North America Brazil Answer :D

Discussion

32.	Question : Ground tissue system of leaf is called
Answer» Conjucive lissue Mesophyll MEDULLARY rays Spongy tissue Answer :B

Discussion

33.	Question : Mesophyll is heterogeneous in_____leaves
Answer» ANSWER :DORSIVENTRAL

Discussion

34.	Question : Ground tissue includes
Answer» All TISSUES external to endodermis All tissues except epidermis and VASCULAR bundles Epidermis and cortex All tissues internal to endodermis Answer :B

Discussion

35.	Question : Ground tissue does not include
Answer» EPIDERMIS CORTEX ENDODERMIS Pericycle Answer :A

Discussion

36.	Question : Ground substance of connective tissue is formed of
Answer» Phospholipids Lipids Monosaccharides Mucopolysaccharides Answer :D

Discussion

37.	Question : Griffith conducted his transformation experiments on
Answer» ESCHERICHIA coli Streptococcus pyogenes Diplococcus pneumoniae Streptomyces griseus ANSWER :C

Discussion

38.	Question : Griffith discovered bacterial transduction in S.pneumoniae.
Answer» True False Answer :TRANSFORMATION

Discussion

39.	Question : Grey specks in Oats is caused by
Answer» Mg Cl B Mn Answer :D

Discussion

40.	Question : Grey creascent is an area:
Answer» At the POINT of enter of SPERM into ovum At the ANIMAL pole Just opposite to site of sperm ENTRY into ovum At the vegetal pole Answer :C

Discussion

41.	Question : Gregor Mendel used which plant in his experiment
Answer» Gram Pea Sunflower Hibiscus Answer :B

Discussion

42.	Question : Gregor Johann Mendel is regarded as what ?
Answer» ANSWER :FATHER of GENETICS

Discussion

43.	Question : Greenlightis most effective for photosynthesis.
Answer» ANSWER :RED LIGHT

Discussion

44.	Question : Greenhouse effectis due tothe presenceof
Answer» ozone LAYERIN the ATMOSPHERE moisturelayer in the atmosphere C_O_2 layer in the atmosphere INFRARED light REACHINGTHE earth Answer :C

Discussion

45.	Question : Greenhouse effect is a naturally ocurring phenomenon that is responsible for heating of earth's surface and atmosphere. What will happen if there is absolutely no greenhouse effect over the earth surfaces?
Answer» Solution :If there is no greenhouse effect, the average TEMPERATURE of the EARTH WOULD have been `-18^@C`

Discussion

46.	Question : Greenhouse effect is due to :
Answer» CFC +` N_2` CFC + CO CFC + `O_2` CFC + `CO_2` ANSWER :D

Discussion

47.	Question : Greenhouse gases include
Answer» `CO_2`,`CFC`,`CH_4` and `N_2O` `CO_2`,`N_2`,`O_2`,`NO_2` and `NH_3` `CH_4`,`N_2`,`CO_2` and `NH_3` `CFC`,`CO_2`,`NH_3` and `N_2` ANSWER :A

Discussion

48.	Question : Greenhouse effect is a naturally ocurring phenomenon that is responsible for heating of earth's surface and atmosphere. Explain greenhouse effect.
Answer» Solution :The PHENOMENON of keeping the earth WARM due to the PRESENCE of certain GASES in the atmosphere.

Discussion

49.	Question : Greenhouseeffect is a naturallyoccuringphenomenonthat it responsiblefor heatingof earth'ssurfaceand atmosphere. a. Explaingreenhouseeffect . b. Whatwill happen if thereis absolutely no greehouse effect overearth'ssurface ?
Answer» Solution :a. Green houseeffect is a naturallyoccuringphenomenon thatis responsible forheatingof earth.ssurfaceand atmosphere. B. If thereis no green houseeffect,the averagetemperatureof the earthwould HAVEBEEN - `18^(@)C`.

Discussion

50.	Question : Greenhouse effect causes warming due to
Answer» Infra-red rays REACHING earth Moisture LAYER in atmosphere INCREASE in temperature DUE to increase in carbon DIOXIDE concentration of atmosphere Ozone layer of atmosphere Answer :C

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Gynaecomastia is the case arises by

Question : Gynaecomastia is a common feature seen in

Question : Gymnosperms differ from grasses-in the

Question : Gymnosperms bear seeds but lack fruits because they lack

Question : Gymnosperms are also called soft wood spermatophytes because they lack

Question : Guttation occurs throughthe pores called________.

Question : Guttation occurs through:

Question : Guttation is mainly due to:

Question : Gubernaculum is a fibrous cord that connects

Question : Guild is

Question : Guard cells in monocot leaves are :

Question : Guard cells cannot assimilate food, because of the absence of

Question : Guanosine is a

Question : Guano deposits are rich in ……… .

Question : Growth rings are.formed due to activity of

Question : Growth regulator_____ inhibits plant growth

Question : Growth regulator_____ induces parthenocarpy.

Question : Growth of lateral branches is promoted by:

Question : Growth of a pollen tube is measured in terms of it's

Question : Growth is irreversible process found at organisation level

Question : Growth of a population of an area depends upon

Question : Growth in living being in mainly by

Question : Growth hormone of pituitary is more effective in :

Question : Growth hormone from pituitary has its effect on metalbolism of

Question : Growth curve is normally:

Question : Group the following as nitrogenous bases and nucleosides : Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.

Question : Group the following as nitrogenous bases and nucleosides:Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.

Question : Group of two or more than two plant species is called as

Question : A group of animals of a species that live in a well-defined geographical area, share or compete for similar resources, potentially interbreed and thus constitute a

Question : Groupof organisms ofthe samespeciesin a givenarea at a particulartimeis calledas

Question : Groundnut is native of .........

Question : Ground tissue system of leaf is called

Question : Mesophyll is heterogeneous in_____leaves

Question : Ground tissue includes

Question : Ground tissue does not include

Question : Ground substance of connective tissue is formed of

Question : Griffith conducted his transformation experiments on

Question : Griffith discovered bacterial transduction in S.pneumoniae.

Question : Grey specks in Oats is caused by

Question : Grey creascent is an area:

Question : Gregor Mendel used which plant in his experiment

Question : Gregor Johann Mendel is regarded as what ?

Question : Greenlightis most effective for photosynthesis.

Question : Greenhouse effectis due tothe presenceof

Question : Greenhouse effect is a naturally ocurring phenomenon that is responsible for heating of earth's surface and atmosphere. What will happen if there is absolutely no greenhouse effect over the earth surfaces?

Question : Greenhouse effect is due to :

Question : Greenhouse gases include

Question : Greenhouse effect is a naturally ocurring phenomenon that is responsible for heating of earth's surface and atmosphere. Explain greenhouse effect.

Question : Greenhouseeffect is a naturallyoccuringphenomenonthat it responsiblefor heatingof earth'ssurfaceand atmosphere. a. Explaingreenhouseeffect . b. Whatwill happen if thereis absolutely no greehouse effect overearth'ssurface ?

Question : Greenhouse effect causes warming due to