24277 + Interview Questions in Biology in Class 12 Page 485 InterviewSolution

24201.	Question : Division of cytoplasm.
Answer» ANSWER :CYTOKINESIS

Discussion

24202.	Question : __________ dividesmitoticallytoformtwomalegametesis apollengrains .
Answer» SOLUTION :generativecell

Discussion

24203.	Question : ____ discovered that crossing over is completely absent in some species of male drosophila.
Answer» Morgan BRIDGES Bateson REGINALD ANSWER :B

Discussion

24204.	Question : _____ discovered the first hormone.
Answer» ANSWER :Baylis and STARLING

Discussion

24205.	Question : _____ disease is characterised by bloody stool with tetranucleate cyst.
Answer» ANSWER :AMOEBIASIS

Discussion

24206.	Question : Disc-like structure formed on centromere for attachment of spindle fibres
Answer» ANSWER :KINETOCHORE

Discussion

24207.	Question : _____ day is observed as World Diabetes Day.
Answer» ANSWER :14TH NOVEMBER

Discussion

24208.	Question :Cytokinesis in plant cells is by
Answer» ANSWER :CELL PLATE INFORMATION

Discussion

24209.	Question : _____ day is observed as malarial day.
Answer» ANSWER :44044

Discussion

24210.	Question :Crossing over occurs between:
Answer» SISTER CHROMATIDS of a bivalent Non-sister chromatids-ofa bivalent Two DIFFERENT bivalents Two non-homologous chromosomes Answer :B

Discussion

24211.	Question : ……………….. Contribute about 60% of the total volume of the semen.
Answer» PROSTATE gland Cowper's glands Seminal vesicles Bartholin's glands Answer :C

Discussion

24212.	Question : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic tympanic cavity of the ear.
Answer» If both As and R are CORRECT and R is correct EXPLANATION of As If both As and R are correct but R is not correct explanation of As If As is correct, R is wrong If both As and R are wrong. Answer :A

Discussion

24213.	Question : _____ chromosomes are J-shaped or L-shaped chromsomes.
Answer» SOLUTION :submetacentric

Discussion

24214.	Question :Chemically, spindle fibre is.
Answer» ANSWER :TUBULIN PROTEIN

Discussion

24215.	Question : _____ cells inhabit immune responses by other lymphocytes.
Answer» ANSWER :SUPPRESSOR T-cells

Discussion

24216.	Question : Cell plate is formed of smaller units called_____
Answer» ANSWER :PHRAGMOPLAST

Discussion

24217.	Question :................... carry good varities of cattle.
Answer» BUSINESSMEN Workers CATTLE KEEPERS Farmers SOLUTION :Cattle keepers

Discussion

24218.	Question : $ Carragenin can coagulate blood. ! Carrangenin is a type of phycocolloid.
Answer» If both As and R are CORRECT and R is correct EXPLANATION of As If both As and R are correct but R is not correct explanation of As If As is correct, R is wrong If both As and R are wrong. Answer :A

Discussion

24219.	Question : ........... breaks the liver cells and comes out.
Answer» TROPHOZOITE Sporozoites METACRYPTOSCHIZONT MEROZOITES SOLUTION :Metacryptoschizont

Discussion

24220.	Question : . Bacterium Lactobucillus is used in the preparation of edible product:
Answer» DESA Idli CURD TODDY SOLUTION :BIOHERBICIDES

Discussion

24221.	Question : ............ associated with filament of molds present in the water and form flocks.(A) Aerobic bacteria(B) Anaerobic bacteria(C) Both (A) and (B)(D) Algae
Answer» AEROBIC BACTERIA Anaerobic bacteria Both (A) and (B) ALGAE SOLUTION :Aerobic bacteria

Discussion

24222.	Question : _______ are undifferentiated mass of cells with variable potency.
Answer» SOLUTION :STEM CELLS

Discussion

24223.	Question : _____ are the enzymes used for cutting the DNA molecules into fragments. An example for the type of enzyme is EcoRI. What does Eco, R and I stand for:
Answer» Solution :Restriction ENZYMES / Restriction endonucleases / Restriction exonucleases / the name of any restrictionenzymes. ECO - Escherichia coli / E.coli R- Name of the strain / Type /ROUGH - RY 13 I - Roman number the order in which the enzymes were isolated from the strain of BACTERIA.

Discussion

24224.	Question : _____ are the young of fish which come out of eggs.
Answer» ANSWER :HATCHLINGS

Discussion

24225.	Question : Give the common name of synthetic stimulant.
Answer» ANSWER :AMPHETAMINE

Discussion

24226.	Question : ........... are the result of lactic acid fermentation of fruits.(A) Curd(B) Pickle(C) Cheese(D) Ensilage
Answer» CURD PICKLE CHEESE ENSILAGE SOLUTION :Pickle

Discussion

24227.	Question : ............. are the major causes of CO polution in large cities and towns.
Answer» FOSSIL FUELS OCEAN DEFORESTATION AUTOMOBILE Solution : Automobile

Discussion

24228.	Question : _____ are the enzymes which unwind DNA.
Answer» ANSWER :HELICASE

Discussion

24229.	Question : _____ are the bird growing for providing meat.
Answer» ANSWER :BROILER

Discussion

24230.	Question : …………. Are present in the wall of carotid arteries.
Answer» Proprioceptors Enteroceptors Baroreceptors Photoreceptors Answer :C

Discussion

24231.	Question : ________ are most widely used cloning vectors in genetic engineering.
Answer» ANSWER :A::D

Discussion

24232.	Question : _________ are located in each annulus of each segment in leech.
Answer» SOLUTION :ANNULAR RECEPTORS

Discussion

24233.	Question : .............. are group of chemicals, which get connected internally to cannabinoid receptors present in brain.
Answer» Opioids CANNABINOIDS Coca None of these Solution :Cannabinoids

Discussion

24234.	Question : _____ are causative agent of ring worm.
Answer» Corynebacterium Microsporum Clostridium Salmonella Answer :FUNGI

Discussion

24235.	Question : ..................... are enzymes that unwind DNA helices while .................. break and reseal the strands.
Answer» SOLUTION :HELICASES, TOPOISOMERASE

Discussion

24236.	Question : _____ are also known as antibody generators.
Answer» ANSWER :ANTIGENS

Discussion

24237.	Question : ……….. Are a pair of lobulated glands which are present at the base of urinary bladder in males.
Answer» PROSTATE glands Seminal vesicles Cowper's glands Bulbourethral glands Answer :B

Discussion

24238.	Question : _____ are a set of offsprings of B aand T-cells that provide future immunity against 2nd invasion.
Answer» ANSWER :MEMORY CELLS

Discussion

24239.	Question : _____ are a set of molecules that can trigger the immune response.
Answer» ANSWER :ANTIGENS

Discussion

24240.	Question : ____ and ____ show antagonistic effect in case of apical dominance but synergistic effect in case of differentiation :
Answer» CYTOKININ and Ethylene Auxin and Cytokinin Gibberellin and Cytokinin ABA and Ethylene Answer :B

Discussion

24241.	Question : _____ and_____ are two rawmaterials of photosynthesis.
Answer» ANSWER :`CO_2`,`H_2O`

Discussion

24242.	Question : What is acid rain?
Answer» SULPHUR di oxide and HYDROGEN peroxide Hydrogen peroxide and SULPHURIC acid Hydrochloride and sulphur DIOXIDE Sulphur dioxide and Nitrogen oxide Solution :Sulphur dioxide and Nitrogen oxide

Discussion

24243.	Question : Anaphase separation during mitosis is:
Answer» Qualitative Quantitative Both(a) and (B) NONE of these Answer :C

Discussion

24244.	Question : …...... add organic matter to the soil and increase fertility
Answer» Anabaena Nostoc Ocillatoria BLUE GREEN ALGAE Solution :Blue green algae

Discussion

24245.	Question : …………. Acts as the centre of many reflexes of the body.
Answer» Diencephalon Cerebellum Cerebrum Spinal Cord Answer :D

Discussion

24246.	Question :A short resting stage between meiosis I and meiosis II.
Answer» ANSWER :INTERKINESIS

Discussion

24247.	Question : ( a) Explain giving reasons why the tourists visiting Rohtang Pass or Mansarovar are advised to resume normal ‘active life’ only after a few days of reaching there. (b) It is impossible to find small animals in the polar regions. Give reasons.
Answer» SOLUTION : (a) Initially the person suffers from ALTITUDE sickness/nausea, fatigue and heart PALPITATION because of low oxygen availability and low atmospheric PRESSURE. Gradually the body increases RBC production, decreasing binding capacity of HB and increases the breathing rate to get acclimatised. (b) Small birds have larger surface area relative to their volume, 30 they lose heat much faster and have to spend more energy to generate body heat through matabolism.

Discussion

24248.	Question :A cytoplasmic factor responsible for crossing major transition in cell cycle is____
Answer» ANSWER :MPF

Discussion

24249.	Question :A common structural feature of vessel elements and sieve tube elements is'
Answer» ENUCLEATE condition Thick secondry walls Pores on LATERAL walls Presence of p-protein Answer :A

Discussion

24250.	Question :
Answer» Only A is correct Only A & B are correct Only A & D are correct Only A & C are correct Answer :D

Discussion

Explore topic-wise InterviewSolutions in .

Question : Division of cytoplasm.

Question : __________ dividesmitoticallytoformtwomalegametesis apollengrains .

Question : ____ discovered that crossing over is completely absent in some species of male drosophila.

Question : _____ discovered the first hormone.

Question : _____ disease is characterised by bloody stool with tetranucleate cyst.

Question : Disc-like structure formed on centromere for attachment of spindle fibres

Question : _____ day is observed as World Diabetes Day.

Question :Cytokinesis in plant cells is by

Question : _____ day is observed as malarial day.

Question :Crossing over occurs between:

Question : ……………….. Contribute about 60% of the total volume of the semen.

Question : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic tympanic cavity of the ear.

Question : _____ chromosomes are J-shaped or L-shaped chromsomes.

Question :Chemically, spindle fibre is.

Question : _____ cells inhabit immune responses by other lymphocytes.

Question : Cell plate is formed of smaller units called_____

Question :................... carry good varities of cattle.

Question : $ Carragenin can coagulate blood. ! Carrangenin is a type of phycocolloid.

Question : ........... breaks the liver cells and comes out.

Question : . Bacterium Lactobucillus is used in the preparation of edible product:

Question : ............ associated with filament of molds present in the water and form flocks.(A) Aerobic bacteria(B) Anaerobic bacteria(C) Both (A) and (B)(D) Algae

Question : _______ are undifferentiated mass of cells with variable potency.

Question : _____ are the enzymes used for cutting the DNA molecules into fragments. An example for the type of enzyme is EcoRI. What does Eco, R and I stand for:

Question : _____ are the young of fish which come out of eggs.

Question : Give the common name of synthetic stimulant.

Question : ........... are the result of lactic acid fermentation of fruits.(A) Curd(B) Pickle(C) Cheese(D) Ensilage

Question : ............. are the major causes of CO polution in large cities and towns.

Question : _____ are the enzymes which unwind DNA.

Question : _____ are the bird growing for providing meat.

Question : …………. Are present in the wall of carotid arteries.

Question : ________ are most widely used cloning vectors in genetic engineering.

Question : _________ are located in each annulus of each segment in leech.

Question : .............. are group of chemicals, which get connected internally to cannabinoid receptors present in brain.

Question : _____ are causative agent of ring worm.

Question : ..................... are enzymes that unwind DNA helices while .................. break and reseal the strands.

Question : _____ are also known as antibody generators.

Question : ……….. Are a pair of lobulated glands which are present at the base of urinary bladder in males.

Question : _____ are a set of offsprings of B aand T-cells that provide future immunity against 2nd invasion.

Question : _____ are a set of molecules that can trigger the immune response.

Question : ____ and ____ show antagonistic effect in case of apical dominance but synergistic effect in case of differentiation :

Question : _____ and_____ are two rawmaterials of photosynthesis.

Question : What is acid rain?

Question : Anaphase separation during mitosis is:

Question : …...... add organic matter to the soil and increase fertility

Question : …………. Acts as the centre of many reflexes of the body.

Question :A short resting stage between meiosis I and meiosis II.

Question : ( a) Explain giving reasons why the tourists visiting Rohtang Pass or Mansarovar are advised to resume normal ‘active life’ only after a few days of reaching there. (b) It is impossible to find small animals in the polar regions. Give reasons.

Question :A cytoplasmic factor responsible for crossing major transition in cell cycle is____

Question :A common structural feature of vessel elements and sieve tube elements is'

Question :

Question : and show antagonistic effect in case of apical dominance but synergistic effect in case of differentiation :

Question : _ and_ are two rawmaterials of photosynthesis.