24277 + Interview Questions in Biology in Class 12 Page 336 InterviewSolution

16751.	Question : Green Revolution succeeded in increasing the yield of the crops by a factor
Answer» 4 3 2 5 Solution :Green REVOLUTION SUCCEEDED in INCREASING the yield of the CROPS by a factors three

Discussion

16752.	Question : What is Greenhouse effect.
Answer» Solution :(1)Greenhouse effect is caused due to heating up of earth'satmosphere.This heating is due to trapped intfrared rays that are reflected from the earth's surface by atmospheric gases.(2)The solar energy reaches the earth in the FORM of ultraviolet radiations are absorbed by the atmosphere ALONG with order atmospheric ganes such as methane,nitrogen oxide,ETC.(5)infrared radiation has heating effect thus it warms up the earth's atmosphere and various objects.(6)A part of the infrared radiations falling on the earth surface which have longer wavelength is reflected back into the outer space.(7)These radiations cannot escape out from the `CO_(2)` layer present in the atmosphere.(8)CARBON dioxide,along with the methane,nitrogen oxides and CFCs can absorb infrared radiations reflected from the earth's surface.(9)THEREFORE,the blanket of these gases in the atmosphere traps the reflected infrared rays and produces heat on the earth's surface.This results in greenhouse effect.(10)Greenhouse effect in turn causes global warming.

Discussion

16753.	Question : Green revolution succeeded in increasing the yield of the crop by a factor
Answer» 4 3 2 5 Solution :3

Discussion

16754.	Question : Green revolution means :-
Answer» INCREASE in PRODUCTION of food plants Increase in growth of green plants for maintaining ecosystem balance Growth of green plants in order to CHECK SOIL erosion Production of green algae Answer :A

Discussion

16755.	Question : Green revolution mainly aims for growing
Answer» disease RESISTANCE VARIETY semi dwarf variety semi FERTILIZING variety none of the above ANSWER :B

Discussion

16756.	Question : Green Revolution- Increase yield of plant _________________ - Increase yield of aquatic plant and animals
Answer» SOLUTION :BLUE REVOLUTION

Discussion

16757.	Question : Green revolution in India occurred during :
Answer» 1965s 1970s 1980S 1950S SOLUTION :1965s

Discussion

16758.	Question : Green potatoes are toxic due to
Answer» Phytoalexins Solanin Triazine Hormones Answer :B

Discussion

16759.	Question : Green plant constitute:
Answer» FIRST TROPHIC LEVEL Second trophic level THIRD trophic level FOURTH trophic level Answer :A

Discussion

16760.	Question : Green manures are prepared from
Answer» SACCHARUM officinarum Zea mays Crotalaria juncea Sorghum vulgare Answer :C

Discussion

16761.	Question : Green house effect is the cumulative result of the influences of certain gases .Identify the gas which is not involved in this influence:
Answer» Methance Nitrogen Carbon dioxide Chlorofluorocarbon Answer :B

Discussion

16762.	Question : Green house effect is due to presence of :
Answer» `NO_2` `CO_2` `SO_2`, CFC CO, `CO_2`,`H_2` `CO_2`, `O_2`, `H_2CH_4` `CO_2` and `CH_4` ANSWER :D

Discussion

16763.	Question : Green house effect is related to :
Answer» GLOBAL WARMING Harticulture Agriculture Kitchen garden Answer :A

Discussion

16764.	Question : Green house effect is caused by
Answer» GREEN plants Infra RED rays UV rays X-rays Answer :B

Discussion

16765.	Question : Green glands are excretory-organ in :
Answer» Arachnida Insecta Crustacea Centipedes Answer :C

Discussion

16766.	Question : Green fluorescent protein (GFP) was isolated from ............
Answer» Aequorea VICTORIA ARABIDOPSIS thaliana AGROBACTERIUM tumifacines ESCHERICHIA coli Answer :A

Discussion

16767.	Question : Green colour of bile is derived from
Answer» CHLOROPHYLL of various vegetable we consume fatty ACID METABOLISM breakdown products of red pigment from DECOMPOSING RBCs Answer :D

Discussion

16768.	Question : Green algae are not likely to be found in the deepest strata of the ocean'. Give at least one reason.
Answer» Solution :As the name INDICATES, green algae possess photosynthetic pigments which use the light as energy source for survival and they are not FOUND in DEEPEST sea since there is lack of light.

Discussion

16769.	Question : Greek word "Oikos" means
Answer» UNFOLDING HOUSE House House ANSWER :B

Discussion

16770.	Question : Greatest genetic diversity of plants is found in
Answer» CENTRAL AMERICA Homelands South America India Answer :B

Discussion

16771.	Question : Greatest biological problems faced by human beings is :
Answer» POPULATION EXPLOSION DEPLETION of OZONE layer Depletion of NATURAL resources Land erosion Answer :A

Discussion

16772.	Question : Greater vestibular glands are
Answer» Paraurethral glands Skene's glands Bartholin's glands Both (1) & (2) ANSWER :C

Discussion

16773.	Question : Greatest biological problems faced by human beings in :
Answer» Populationexplosion Depletion of OZONE layer Depletion of NATURAL RESOURCE LAND erosion Answer :A

Discussion

16774.	Question : Greater the BOD of sewage water, its polluting ability is:
Answer» lower higher no EFFECT on POLLUTING ability None of the above Answer :C

Discussion

16775.	Question : Greater trochanter and lesser trochanter occur in
Answer» Humerus Femur Radio-ulna Tibio-fibula Answer :B

Discussion

16776.	Question : Great Barrier Reef along east coast of Australia is a
Answer» POPULATION COMMUNITY BIOME ECOSYSTEM SOLUTION :ecosystem

Discussion

16777.	Question : Grasslands with scattered trees are called
Answer» RAIN FORESTS EVERGREEN forests Savannah Deciduous forests ANSWER :C

Discussion

16778.	Question : Grass rarr Deer rarr Tiger In this food chain, the biomass of grass is 1 tonne. The tiger biomass will be:
Answer» 100kg 10kg 1kg 1000kg Answer :B

Discussion

16779.	Question : grape vine (vitis) possesses
Answer» SEPTATE fibres very SHORT tracheids Elongated sclereides all the above. Answer :C

Discussion

16780.	Question : Granules contain histamine in
Answer» Neutrophil Eosinophil Acidophil Basophil Answer :D

Discussion

16781.	Question : granular peumocytes secrete dipalmitoyl phosphatidyl choline, these are specicalised lipids, which preform many funcation. Choose the false statement with regard to the functions.
Answer» PREVENT oedema FORMATION of ADAM's apple Prevents acculmulation of LYMPH on alveoli Preventing alveoli from collapse Answer :B

Discussion

16782.	Question : Grana and Stromata.
Answer» SOLUTION :

Discussion

16783.	Question : Grafting is the union between two plants of closely related varieties. Following are some statements regarding different types of grafting. (i) An oblique cut followed by a notch is given to both stock and scion. (ii) Scion is a bud with a small piece of bark and cambium. (iii) Both stck and scion are of same diameter. (iv) Stock has many times more diameter than scion. Identify the type of grafting with respect to these statements and select the correct option.
Answer» can be tongue grafting in which DIAMETER of stck is larger than that of scion. can be bud grafting in which stock of monocot and scion of dicot plant are usually united. can be wedge grafting in which v-shaped notch is given to stock whereas wedge LIKE cut is given to scion. can be crown grafting in which many stcks are inserted in the slits made in the scions. Solution :In the tongue grafting, an oblique cut followed by a notch IWS given to both the stock as well scion. The two perfectly fit upon one another, they are tied together. Stock and scion are of same diameter. In bud grafting, scion is a bud with a small piece of bark and cambium. MONOCOTS do not possess cambium, thus the two plants TAKEN can be dicots only. In wedge grafting,v-shaped notch is given to stock while wedge like cut is given to scion. both of same diameter, in crown grafting, many6 scions are selected and shaped at the base to form wedge. Many slits are formed on the sides of stock. Scions are inserted in the slits and bandaged. Stock has large diameter diameter than scion.

Discussion

16784.	Question : Grain colour in wheat is determined by three pairs of polygene . Following the corss AABBCC ( dark colour ) x aabbcc ( light colour ) , in F_2 -generation , what proportion of the progeny is likely to resemble either parent ?
Answer» HALF Less than 5 percent One third None of these Answer :B

Discussion

16785.	Question : Grahams law is correlated with:
Answer» Diffusion Osmoregulation Osmosis Adsorption Answer :A

Discussion

16786.	Question : Grafting is successful in dicots but not in monocots because the dicots have:
Answer» Vascular BUNDLES arranged in a ring Cambium for SECONDARY growth Vessels with elments arranged END to end Cork cambium Answer :B

Discussion

16787.	Question : Give scientific reason.Grafting is not possible in monocots.
Answer» SOLUTION :Monocot plants possess closed vascular bundles. These bundles does not have cambium. Cambium is meristematic tissue. In grafting UNION of stock and SCION takes place through this meristematic tissue. HENCE grafting is not possible in monocots.

Discussion

16788.	Question : Grafting is not possible in monocot because of (A) scattered vascular bundles (B) lack of cambium (C) collateral open vascular bundles (D) radial vascular bundles
Answer» scattered vascular BUNDLES LACK of cambium COLLATERAL open vascular bundles radial vascular bundles ANSWER :B

Discussion

16789.	Question : Grafting attempted in those plants which show:
Answer» ADVENTITIOUS roots BUDS HERBACEOUS STEM Secondary growth Answer :D

Discussion

16790.	Question : Grafted kidney may be rejected in a patient due
Answer» HUMORAL IMMUNE RESPONSE cell-mediated immune response passive immune response innate immune response SOLUTION :cell-mediated immune response

Discussion

16791.	Question : Graft rejection is due to which immunity?
Answer» CELLULAR barrier of innate immunity only Cell MEDIATED immunity. HUMORAL immunity Innate immunity. ANSWER :B

Discussion

16792.	Question : Gradual, sequential changes of a given area including species compositio is known as ecological succession. If so name the first two stages of the succession in hydric area.
Answer» SOLUTION :PHYTOPLANKTON STAGE SUBMERGED PLANT stage

Discussion

16793.	Question : Gradual shifting of chiasmata towards ends of bivalent
Answer» ANSWER :Treminalization

Discussion

16794.	Question : Gradual changes in the species composition of a given area leading to the formation of climax community is called ecological succession in a rocky area.How does thi pioneer species lead to the establishment of a stable climax community ?
Answer» Solution :Crustose LICHEN absorbs moisture and they secrete carbonic ACID to dissolve rocks. It BRINGS about weathering of rocks and soil formation. Through death and decay of lichen the soil becomes fertile. LATER it is occupied by mosses which hold soil. It is further succeded by herbs, SHRUBS and trees.

Discussion

16795.	Question : Gradual changes in the species composition of a given area leading to the formation of climax community is called ecological succession in a rocky area. What is the expected type of pioneer species?
Answer» SOLUTION :CRUSTOSE LICHEN

Discussion

16796.	Question : Graafin follicles are found in _____ of mammals .
Answer» ANSWER :OVARY

Discussion

16797.	Question : Graafian follicle is observed in the ovary of
Answer» Rohu Amphioxus Salamander Human Answer :D

Discussion

16798.	Question : Graafian follicle contains
Answer» Many OOCYTES Many SPERMS A SINGLE oocyte SITE for egg fertilisation. ANSWER :C

Discussion

16799.	Question : GPP means
Answer» GROSS PUBLIC partnership Gross primary production Gross producer production Gross PLANT production Solution :Gross primary production

Discussion

16800.	Question : Graafian folicle secretes_____.
Answer» Testosteron Oestrogen Progesteron Relaxin Answer :B

Discussion

Explore topic-wise InterviewSolutions in .

Question : Green Revolution succeeded in increasing the yield of the crops by a factor

Question : What is Greenhouse effect.

Question : Green revolution succeeded in increasing the yield of the crop by a factor

Question : Green revolution means :-

Question : Green revolution mainly aims for growing

Question : Green Revolution- Increase yield of plant _________________ - Increase yield of aquatic plant and animals

Question : Green revolution in India occurred during :

Question : Green potatoes are toxic due to

Question : Green plant constitute:

Question : Green manures are prepared from

Question : Green house effect is the cumulative result of the influences of certain gases .Identify the gas which is not involved in this influence:

Question : Green house effect is due to presence of :

Question : Green house effect is related to :

Question : Green house effect is caused by

Question : Green glands are excretory-organ in :

Question : Green fluorescent protein (GFP) was isolated from ............

Question : Green colour of bile is derived from

Question : Green algae are not likely to be found in the deepest strata of the ocean'. Give at least one reason.

Question : Greek word "Oikos" means

Question : Greatest genetic diversity of plants is found in

Question : Greatest biological problems faced by human beings is :

Question : Greater vestibular glands are

Question : Greatest biological problems faced by human beings in :

Question : Greater the BOD of sewage water, its polluting ability is:

Question : Greater trochanter and lesser trochanter occur in

Question : Great Barrier Reef along east coast of Australia is a

Question : Grasslands with scattered trees are called

Question : Grass rarr Deer rarr Tiger In this food chain, the biomass of grass is 1 tonne. The tiger biomass will be:

Question : grape vine (vitis) possesses

Question : Granules contain histamine in

Question : granular peumocytes secrete dipalmitoyl phosphatidyl choline, these are specicalised lipids, which preform many funcation. Choose the false statement with regard to the functions.

Question : Grana and Stromata.

Question : Grain colour in wheat is determined by three pairs of polygene . Following the corss AABBCC ( dark colour ) x aabbcc ( light colour ) , in F_2 -generation , what proportion of the progeny is likely to resemble either parent ?

Question : Grahams law is correlated with:

Question : Grafting is successful in dicots but not in monocots because the dicots have:

Question : Give scientific reason.Grafting is not possible in monocots.

Question : Grafting is not possible in monocot because of (A) scattered vascular bundles (B) lack of cambium (C) collateral open vascular bundles (D) radial vascular bundles

Question : Grafting attempted in those plants which show:

Question : Grafted kidney may be rejected in a patient due

Question : Graft rejection is due to which immunity?

Question : Gradual, sequential changes of a given area including species compositio is known as ecological succession. If so name the first two stages of the succession in hydric area.

Question : Gradual shifting of chiasmata towards ends of bivalent

Question : Gradual changes in the species composition of a given area leading to the formation of climax community is called ecological succession in a rocky area.How does thi pioneer species lead to the establishment of a stable climax community ?

Question : Gradual changes in the species composition of a given area leading to the formation of climax community is called ecological succession in a rocky area. What is the expected type of pioneer species?

Question : Graafin follicles are found in _____ of mammals .

Question : Graafian follicle is observed in the ovary of

Question : Graafian follicle contains

Question : GPP means

Question : Graafian folicle secretes_____.