24277 + Interview Questions in Biology in Class 12 Page 198 InterviewSolution

9851.	Question : Prostatic secretion is used in earthworm for
Answer» SPERM activation Ootheca Spermatophore layer Copulation Answer :A

Discussion

9852.	Question : Proteinaceous endosperm of maize is called(A) apophysis(B) aleurone layer(C) scutellum(D) xenia
Answer» apophysis aleurone layer scutellum xenia Answer :B

Discussion

9853.	Question : Prosthetic groups are organic compounds and are tightly bound to the apoenzyme. Haem is the prosthetic group of :-
Answer» Peroxidase Catalase Carboxypeptidase (1) and (2) both Answer :D

Discussion

9854.	Question : Prostate gland is presetn
Answer» On ureter On kidney On TESTIS AROUND URETHRA. ANSWER :D

Discussion

9855.	Question : Prostate gland produces a secretion for
Answer» ATTRACTING sperms Stimulating SPERM ACTIVITY Attracting egg None of the above Answer :B

Discussion

9856.	Question : Prostate gland - Bulbourethral gland
Answer» Solution :Prostate glands : It is located in posterior part of urinary BLADDER in males and its SECRETION activates sperms. Bulbourethral GLAND : It s paired below prostate gland on the lateral side of URETHRA. It helps in lubrication during coitus.

Discussion

9857.	Question : Prosperity of human beings in the whole world lies in the prosperity of the nature. Justify this statement.
Answer» Solution :The prosperty of the human beings in the whole world lies in the prosperity of the nature. The DEPLETION of land resources due to soil erosion, salination, acidification, alkalinization, water logging, construction of roads, railways and dams, urbanisation, industrialisation, MINING activities etc. will alter the ecosystem which in turn affects the PLANTS which form the basic producers and provide food to the whole living world. Plant resources are renewable but are depleting due to deforestation, over-grazing, forest fires, ENVIRONMENTAL pollution etc. So care MUST be taken to preserve the ecosystem.

Discussion

9858.	Question : Prostate gland is presenta)On ureterb)On kidneyc)On testisd)Around urethra
Answer» On ureter On kidney On testis Around urethra Answer :D

Discussion

9859.	Question : Prostagladin is
Answer» STEROID Carbohydrate Amino ACID Fattyacid . SOLUTION :N//A

Discussion

9860.	Question : Prosopis juliflora, though an alien invasive species to India, it is beneficial to certain extent. Give reason.
Answer» SOLUTION : Prosopis JULIFLORA is USED to arrest wind EROSION and stabilize sand dunes on coastal and desert areas. It can absorb HAZARDOUS chemicals from soil and it is the main source of charcoal.

Discussion

9861.	Question : Prosimian found only on the island of Madagascar is
Answer» Galagos Loris Lemur Bush Baby. Solution :Geological Dating/RADIOMETRIC Dating. It is a method of determining the age of geological structures like rocks and fossils. The most common method is measuring the rate of decay of radioactive elements and is, therefore, called radiometric dating. The elements chosen for radiomatric dating. TheCarbon-14 (1000 - 50,000 yrs), Potassium-40 (more than 100,000 YEARS),Thorium-232 and Uranium-238 (more than 30 million years). Radio-carbon dating was perfected by Libby (1949). The ratio of `C-14` and `C-12` is calculated in a material under INVESTIGATION and compared with their ratio in atmosphere with minor corrections. Aceelerator Mass Spectrometry (AMS) requires only a small SAMPLE and measure `C-14` diectly.

Discussion

9862.	Question : Proprioreceptors are found in
Answer» SOLE of feet Adrenal cortex Hypothalamus MEDULLA. ANSWER :A

Discussion

9863.	Question : _________________proposed the concept of centres of origin.
Answer» ANSWER :VAVILOV

Discussion

9864.	Question : Proportion of progenies with round seed and red flowered pea plants if cross is made between WwRr and ww Rr would by -
Answer» `3//8` `1//8` `4//8` `2//8` ANSWER :A

Discussion

9865.	Question : Property shown by a normal cell when compared to a cancerous cells is
Answer» NEOPLASMA formation High TELOMERASE activity Uncontrolled CELL division Contact inhibition Answer :D

Discussion

9866.	Question : Proper sequence of phases in growth is:
Answer» CELL DIFFERENTIATION - ELONGATION - DIVISION Cell division -differentiation-elongation cell elongation-division-differentiation Cell division-elongation-differentiation Answer :D

Discussion

9867.	Question : Propellar mechanism of anemochory occurs in
Answer» Tecoma HIPTAGE AILANTHUS Shorea ANSWER :C

Discussion

9868.	Question : Prolonged liberal irrigation of agricultural field likely to create the problem of:
Answer» Aridity Acidity Metal toxicity Salinity Answer :D

Discussion

9869.	Question : Proliferation phase :
Answer» SOLUTION :The period of 6-14 days after the menstrual FLOW phase is CALLED proliferation phase.

Discussion

9870.	Question : Proliferation of endometrium of uterus is controlled by :
Answer» Relaxin Oxytocin Progesterone Oestrogen Answer :D

Discussion

9871.	Question : Proliferation of cancer cells is not limited because of
Answer» DIFFERING SURFACE proteins differing CHOLESTEROL level deficiency of steroids abervant CHROMOSOMAL complement Answer :A

Discussion

9872.	Question : Prolactin controlling agent is
Answer» Ach Dopamine GABA Prostaglandins Answer :B

Discussion

9873.	Question : Prokaryotic ribosome is_____ type.
Answer» ANSWER :70S

Discussion

9874.	Question : Prokaryotic flagella is made up of :-
Answer» FLAGELLIN, a NON CONTRACTILE protein Flagellin, a contractile protein Tubulin, a contractile protein Pilin, a contractile protein Answer :B

Discussion

9875.	Question : Prokaryotic genetic system contain:
Answer» DNA and Histone DNA WITHOUT Histone Histone but no DNA Neither Dna nor Histone Answer :B

Discussion

9876.	Question : Prokaryotic Cells
Answer» Have DOUBLE ENVELOPE system Show complex structure Possess CELLULOSIC cell wall Are MORPHOLOGICALLY simple Answer :D

Discussion

9877.	Question : Project tiger in India was stared in year:
Answer» 1973 1981 1985 1986 Answer :A

Discussion

9878.	Question : Proinsulin contain(A) A Peptide(B) B Peptide(C) C Peptide(D) All of these
Answer» A PEPTIDE B Peptide C Peptide All of these Solution :All of these

Discussion

9879.	Question : Progestogens in the contraceptive pill
Answer» Prevent ovulation INHIBITS ostrogen check ATTACHMENT of zygote in endmetrium . All of these Answer :A

Discussion

9880.	Question : Progestin- estradiol combined contraceptive pills inhibit ovulation by:
Answer» negative feedback on the release of estrogen, from ovary required for follicular development in follicular phase. preventing the uterine PHYSIOLOGICAL and morphological changes required for implantation. INHIBITING the SECRETION of FSH and LH that are necessary for OVULATION. both (A) and (C) Answer :D

Discussion

9881.	Question : Progeny resulting in cross pollination :-
Answer» Are ALWAYS sterile Always show recessive character Are homozygous Show GREATER GENETIC variability Answer :D

Discussion

9882.	Question :Progestasert and LNG-20 are
Answer» IMPLANTS COPPER RELEASING IUDS Non-medicated IUDs HORMONE releasing IUDs Answer :D

Discussion

9883.	Question : Progesterone hormone is secreted bycorpus albicanscorpus callosumcorpus luteum in ovariescorpus uteri
Answer» CORPUS albicans corpus callosum corpus LUTEUM in ovaries corpus uteri Answer :C

Discussion

9884.	Question : Progeny resulting from cross-pollination :
Answer» Show greater genetic VARIABILITY and are EVOLUTIONARILY important Are homozygous and show phenotypic uniformity Are always STERILE Always show RECESSIVE character ANSWER :A

Discussion

9885.	Question : Progeny obtained as a result of repeated self-pollination of a cross-pollinated crop is called as
Answer» pureline PEDIGREE line INBREED line heterosis ANSWER :C

Discussion

9886.	Question : Progeny obtained as a result of repeat self pollination of a cross pollinated crop is called
Answer» (a) pure line (B) PEDIGREE line (C) INBREED line (d) heterosis Answer :A

Discussion

9887.	Question : Progency are phenotypically and genotypically similar in
Answer» `F_(2)` GENERATION `F_(3)` generation `F_(4)` generation `F_(1)` generation Answer :D

Discussion

9888.	Question : Flowering in response to temperature
Answer» ANSWER :VERNALIZATION

Discussion

9889.	Question :Products of redifferentiation are
Answer» PRIMARY XYLEM, PHLOEM, cortex Primary meristem Secondary xylem, cork Cork CAMBIUM, interfascicular cambium Answer :C

Discussion

9890.	Question : Prductivity of profundal zone will be low. Why ?
Answer» Solution :The producers of the POND ecosystem depends on phytoplankton through photosynthesis. Profundal zone LIES below the limnetic zone with no EFFECTIVE light penetration, hence productivity rate is very LOW.

Discussion

9891.	Question : Productivity is the rate of production of biomass expressed in terms of: (i) (kcal m^(-3))yr^(-1) (ii) g^(-2)yr^(-1) (iii) g^(-1)yr^(-1) (iv)(kcalm^(-2))yr^(-1)
Answer» ii iii ii and iv i and iii Solution :It is the AMOUNT of biomass or organic matter produced by per unit area over a time period by plants during PHOTOSYNTHESIS. It is expressed in terms of weight `(g^(-2))` or ENERGY `(kcal m^(-2)) YR^(-1)`.

Discussion

9892.	Question : Products of light reaction are
Answer» `O_2` and `CO_2` `CO_2` and `H_2O` ATP and NADPH ATP and `CO_2` ANSWER :C

Discussion

9893.	Question : Productivity, Decomposition, energy flow and nutrient cycling are the :-
Answer» PHYSICAL STRUCTURE of ecosystem Functions of ecosystem Only BIOTIC components of ecosystem Only ABIOTIC components of ecosystem Answer :B

Discussion

9894.	Question : Productivity is one of the key function of an ecosystem, it varies in different ecosystems. Some Terrestrial ecosystem shows abundant and least productivity. Name it.
Answer» Solution :ABUNDANT productivity is found in trophical RAINFOREST. LEAST productivity is found in DESERT.

Discussion

9895.	Question : Productivity is the rate of production of biomass expressed in terms of: (i) ("kcal m"^(-3))yr^(-1) (ii) g^(-2)yr^(-1) (iii) g^(-1)yr^(-1) (iv) ("kcal m"^(-2))yr^(-1)
Answer» (II) (III) (ii) and (IV) (i) and (iii) ANSWER :d

Discussion

9896.	Question : Productionprocess of blood cells in bone marrow is called……….
Answer» ANSWER :Harematopiesis

Discussion

9897.	Question : Production of O_2 by illuminating isolated chloroplasts in the presence of ferricyanide is called Emerson effect.
Answer» ANSWER :HILL REACTION

Discussion

9898.	Question : Production of new plants without fertilization is called(A) Vegetative propagation(B) Transplantation(C) Grafting(D) Layering
Answer» VEGETATIVE PROPAGATION TRANSPLANTATION grafting layering ANSWER :A

Discussion

9899.	Question : Production of large quantites of proteins and enzymes requires the use of
Answer» Selectable markers Bioreactors Disarmedpathogens NONE Answer :B

Discussion

9900.	Question : Production of human protein in bacterial genetic engineering is possible because
Answer» HUMAN CHROMOSOME replicates bacterial cell Mechanism of gene regulation is identical in humans and bacteria Bacterial cell can undertake RNA splicing GENETIC CODE is universal Solution :Genetic code is universal

Discussion

Explore topic-wise InterviewSolutions in .

Question : Prostatic secretion is used in earthworm for

Question : Proteinaceous endosperm of maize is called(A) apophysis(B) aleurone layer(C) scutellum(D) xenia

Question : Prosthetic groups are organic compounds and are tightly bound to the apoenzyme. Haem is the prosthetic group of :-

Question : Prostate gland is presetn

Question : Prostate gland produces a secretion for

Question : Prostate gland - Bulbourethral gland

Question : Prosperity of human beings in the whole world lies in the prosperity of the nature. Justify this statement.

Question : Prostate gland is presenta)On ureterb)On kidneyc)On testisd)Around urethra

Question : Prostagladin is

Question : Prosopis juliflora, though an alien invasive species to India, it is beneficial to certain extent. Give reason.

Question : Prosimian found only on the island of Madagascar is

Question : Proprioreceptors are found in

Question : _________________proposed the concept of centres of origin.

Question : Proportion of progenies with round seed and red flowered pea plants if cross is made between WwRr and ww Rr would by -

Question : Property shown by a normal cell when compared to a cancerous cells is

Question : Proper sequence of phases in growth is:

Question : Propellar mechanism of anemochory occurs in

Question : Prolonged liberal irrigation of agricultural field likely to create the problem of:

Question : Proliferation phase :

Question : Proliferation of endometrium of uterus is controlled by :

Question : Proliferation of cancer cells is not limited because of

Question : Prolactin controlling agent is

Question : Prokaryotic ribosome is_____ type.

Question : Prokaryotic flagella is made up of :-

Question : Prokaryotic genetic system contain:

Question : Prokaryotic Cells

Question : Project tiger in India was stared in year:

Question : Proinsulin contain(A) A Peptide(B) B Peptide(C) C Peptide(D) All of these

Question : Progestogens in the contraceptive pill

Question : Progestin- estradiol combined contraceptive pills inhibit ovulation by:

Question : Progeny resulting in cross pollination :-

Question :Progestasert and LNG-20 are

Question : Progesterone hormone is secreted bycorpus albicanscorpus callosumcorpus luteum in ovariescorpus uteri

Question : Progeny resulting from cross-pollination :

Question : Progeny obtained as a result of repeated self-pollination of a cross-pollinated crop is called as

Question : Progeny obtained as a result of repeat self pollination of a cross pollinated crop is called

Question : Progency are phenotypically and genotypically similar in

Question : Flowering in response to temperature

Question :Products of redifferentiation are

Question : Prductivity of profundal zone will be low. Why ?

Question : Productivity is the rate of production of biomass expressed in terms of: (i) (kcal m^(-3))yr^(-1) (ii) g^(-2)yr^(-1) (iii) g^(-1)yr^(-1) (iv)(kcalm^(-2))yr^(-1)

Question : Products of light reaction are

Question : Productivity, Decomposition, energy flow and nutrient cycling are the :-

Question : Productivity is one of the key function of an ecosystem, it varies in different ecosystems. Some Terrestrial ecosystem shows abundant and least productivity. Name it.

Question : Productivity is the rate of production of biomass expressed in terms of: (i) ("kcal m"^(-3))yr^(-1) (ii) g^(-2)yr^(-1) (iii) g^(-1)yr^(-1) (iv) ("kcal m"^(-2))yr^(-1)

Question : Productionprocess of blood cells in bone marrow is called……….

Question : Production of O_2 by illuminating isolated chloroplasts in the presence of ferricyanide is called Emerson effect.

Question : Production of new plants without fertilization is called(A) Vegetative propagation(B) Transplantation(C) Grafting(D) Layering

Question : Production of large quantites of proteins and enzymes requires the use of

Question : Production of human protein in bacterial genetic engineering is possible because