24277 + Interview Questions in Biology in Class 12

1.	Question : Seed settting is assured even in the absence of pollinating agents in
Answer» Ficus Viola Yucca Salvia Solution :Water HYACINTH and water lily are insectpollinated FLOWERS Hydrilla plant is water pollinated while GRASSES are pollinated by wind

Discussion

2.	Question : Seed of Pinus contains
Answer» Parent SPOROPHYTE is form of perisperm ENDOSPERM as gametophyte EMBRYO as FUTURE sporophyte All the above. Answer :D

Discussion

3.	Question : Seed i.e. positive photoblastic is
Answer» Tobacco Onion Lily Phlox Answer :A

Discussion

4.	Question : Seed habit first originated in
Answer» certain ferns certain pines certain monocots primitive dicots Solution :(a) The tendency towards seed FORMATION is called seed HABIT. It was DEVELOPED in fossil gymnosperm of group Cycadofilicales (pteridosperms), i.e.Seed ferns, e.g.Lyginopteris which bears characters of cycads and ferns both, Seed habit is SHOWN by few pteridophytes like Selaginella, Marselia, Isoetes, etc. which exhibit HETEROSPORY.

Discussion

5.	Question : Seed habit first established in :-
Answer» PTERIDOPHYTES Gymnosperms ANGIOSPERMS NONE of the above Answer :B

Discussion

6.	Question : Seed germination is accompanied by
Answer» ABSORPTION of heat Stracj synthesis Evolution of heat Fat synthesis Answer :C

Discussion

7.	Question : Seed formation without fertilization in flowering plants involves the process of:
Answer» Sporulation Budding Somatic hybridization Apomixis Solution :N//A

Discussion

8.	Question : Seed dormancyis dueto the presence of hard seed coats,in the members of .
Answer» Fabaceae Solanaceae Liliacae Malvaceae Answer :B

Discussion

9.	Question : Seed develops from
Answer» EMBRYO Ovule Embryo sac Ovary Answer :B

Discussion

10.	Question :Seed coat is not thin , membranous in :
Answer» COCONUT GROUNDNUT GRAM Maize Answer :A

Discussion

11.	Question :Seed coat is derived from :
Answer» PERICARP EPICARP INTEGUMENTS of OVULE Nucellus Answer :C

Discussion

12.	Question : Seed bank conserves…………..
Answer» SIMPLE PLANT TYPES of soil Germplasm All the above Solution :All the above

Discussion

13.	Question : See the following figure and identify A, B, C, D and E are respectively
Answer» Stigma, Anther, Ebryo sac, EGG and FEMALE gametophte Stigma, Anther, MALE, gametophyte, fertilized egg and female gametophyte Stigma, Anther, Female gametophyte Egg and Male gametophyte Stigma, Anther, Male gametophyte, Egg and female gametophyte Answer :D

Discussion

14.	Question : Sedimentary cycle that occur in lithosphere. Give an example for sedimentary cycle.
Answer» SOLUTION :PHOSPHOROUS CYCLE

Discussion

15.	Question : Sedimentation coefficient or Svedberg unit is equal to
Answer» `1XX10^(-13)`s `1xx10^(-2)s` `1xx10^(-10)s` `1xx10^(-5)s` ANSWER :A

Discussion

16.	Question : Sedimentary cycle is quite different from a gaseous cycle with respect to its reservoir. Bring out the difference.
Answer» SOLUTION :The reservoir of gaseous CYCLE exists in the atmosphere and for the sedimentary cycle it is LOCATED in earth.s crust.

Discussion

17.	Question : Secretions from which one of the following are rich in fructose , calcium and some enzymes ?
Answer» Salivary GLAND FEMALE accessory GLANDS Male accessory glands Liver Answer :C

Discussion

18.	Question : Secretions of all these glands constitute the seminal plasma except :-
Answer» BULBOURETHRAL gland Prostate gland Seminal vesicle Bartholin gland Answer :D

Discussion

19.	Question : Secretory polypeptide carrying signal peptideis called
Answer» Peptone Proprotein Preprotein Protein. Solution :N//A

Discussion

20.	Question : Secretion of which nervous system prepares you during stress and danger ?
Answer» ANSWER :SYMPATHETIC

Discussion

21.	Question : Secretion of which glands form succus entericus.
Answer» ANSWER :Brunner's GLAND and CRYPTS of LIEBERKUHN

Discussion

22.	Question : Secretion of which gland makes the semen alkaline ?
Answer» ANSWER :PROSTATE

Discussion

23.	Question : Secretion of aldosterone is under the control of
Answer» HYPOTHALAMIC PORTAL system Hypothalamo-hypophyseal tract RAAS pathway Adrenal cortex Answer :C

Discussion

24.	Question : Secretion from which of the following cells inhibits the development of paramesonephric duct in males?
Answer» INTERSTITIAL cells Sertoli cells Spermatogonia Spermatozoa Answer :B

Discussion

25.	Question : Secretin stimulates:
Answer» Pancreas Gall bladder Lungs Gastric gland Answer :A

Discussion

26.	Question : Secrection of which of the following is under neurosecretory nerve axons?
Answer» Pineal Adrenal cortex Anterior pituitary posterior pituitary Answer :D

Discussion

27.	Question : Secrection of which of the following antagonistic hormones is not under the control of pituitary gland?
Answer» PTH-Calcutonin Calcitonin-Calcitriol Glucocorticoids-cortisol LH-FSH Answer :B

Discussion

28.	Question : Secondary was is not formed in
Answer» COMPANION cells COLLENCHYMA PARENCHYMA All the above Answer :C

Discussion

29.	Question : Secrection of HCI in stomach in an example for…..
Answer» ANATOMICAL barriers Phagocytic barriers Physiological barriers Inflammatory barriers Answer :A::B::C

Discussion

30.	Question : Secondary wall grows in thickness by
Answer» INTERCALATION Introgression Accertion Epiboly Answer :C

Discussion

31.	Question : Secondary sewage treatment is mainly a:
Answer» PHYSICAL process Mechanical process Chemical process Biological process Answer :D

Discussion

32.	Question : Secondary sewage treatment is mainly
Answer» PHYSICAL PROCESS Mechanical process Chemical process Biological process ANSWER :D

Discussion

33.	Question : Secondary productivity is rate of formation of new organic matter by
Answer» PRODUCER PARASITE CONSUMER DECOMPOSER SOLUTION :consumer

Discussion

34.	Question : Secondary productivity is rate of formation of new organic matter by :
Answer» Parasite Consumers Decomposer Producer Answer :B

Discussion

35.	Question : Secondary producers are
Answer» HERBIVORES PRODUCERS CARNIVORES NONE of the above ANSWER :D

Discussion

36.	Question : Secondary producers are:
Answer» HERBIVORES Producers Carnivores NONE of these Answer :D

Discussion

37.	Question : Secondary pollutants is/are:- (a) Brown air (b) Grey air (c) Acid Rain (d) DDT
Answer» a,B and C are correct a and b are correct b and d are correct a and c are correct Answer :A

Discussion

38.	Question : Secondary nucleus formed by the fusion of two polar nuclei is also called
Answer» VEGETATIVE nucleus Definitive nucleus Generative nucleus Primary ENDOSPERM nucleus. Answer :A

Discussion

39.	Question : Secondary oocyte formation occurs in
Answer» SECONDARY follicle Graafian follicle Fallopaians tube Uterus Answer :B

Discussion

40.	Question : Secondary cortex underset("phloem")overset("Xylem")to Secondary ltbbrgt Phellem, Phellogen Which options are the odd ones associated with development from process of redifferentiation.
Answer» Secondary CORTEX and xylem Secondary phloem and phellem Secondary cortex and secondary phloem Phellem and phellogen ANSWER :C

Discussion

41.	Question : Secondary egg membrane of human is formed by:-
Answer» Mucopolysaccaride Granulosa cells mucaus cell Thecal cell Answer :B

Discussion

42.	Question : Second stage of hydrosere is occupied by plants like
Answer» SALIX VALLISNERIA AZOLLA Typha SOLUTION :Vallisneria

Discussion

43.	Question : Secondary cell wall grows by:
Answer» ANSWER :ACCERTION

Discussion

44.	Question : Second generation vaccines are prepared by recombinant DNA technology. Which of the following are the examples of such vaccines ?(A) Hepatitis B virus vaccine(B) Herpes virus vaccine(C) Salk's polio vaccine(D) Both (A) and (B)
Answer» HEPATITIS B virus VACCINE Herpes virus vaccine Salk's polio vaccine Both (A) and (B) Solution :Both (A) and (B)

Discussion

45.	Question : Second messengers are activated in response to
Answer» STEROID hormones thyroxine hydrophilic hormones all of these Answer :C

Discussion

46.	Question : Second generation vaccines are prepared by recombinant DNA technology. Which out of the following are the examples of such vaccines ?
Answer» HEPATITIS B VIRUS vaccine Herpes virus vaccine Salk's POLIO vaccine Both (a) and (b) ANSWER :D

Discussion

47.	Question : Second meiotic division during oogenesis is completed in
Answer» OVARY Graafian Fallopian tube Tertiary follicle Answer :C

Discussion

48.	Question : Sebaceous glands are
Answer» Apocrine Holocrine Merocrine Endocrine Answer :B

Discussion

49.	Question : Sea weeds and few plants existed around …………... millions year ago.
Answer» 500 300 320 350 Solution :320

Discussion

50.	Question : Sea Lemon is
Answer» Echinoarachinus Doris Limax Nautilus Solution :N//A

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : Seed settting is assured even in the absence of pollinating agents in

Question : Seed of Pinus contains

Question : Seed i.e. positive photoblastic is

Question : Seed habit first originated in

Question : Seed habit first established in :-

Question : Seed germination is accompanied by

Question : Seed formation without fertilization in flowering plants involves the process of:

Question : Seed dormancyis dueto the presence of hard seed coats,in the members of .

Question : Seed develops from

Question :Seed coat is not thin , membranous in :

Question :Seed coat is derived from :

Question : Seed bank conserves…………..

Question : See the following figure and identify A, B, C, D and E are respectively

Question : Sedimentary cycle that occur in lithosphere. Give an example for sedimentary cycle.

Question : Sedimentation coefficient or Svedberg unit is equal to

Question : Sedimentary cycle is quite different from a gaseous cycle with respect to its reservoir. Bring out the difference.

Question : Secretions from which one of the following are rich in fructose , calcium and some enzymes ?

Question : Secretions of all these glands constitute the seminal plasma except :-

Question : Secretory polypeptide carrying signal peptideis called

Question : Secretion of which nervous system prepares you during stress and danger ?

Question : Secretion of which glands form succus entericus.

Question : Secretion of which gland makes the semen alkaline ?

Question : Secretion of aldosterone is under the control of

Question : Secretion from which of the following cells inhibits the development of paramesonephric duct in males?

Question : Secretin stimulates:

Question : Secrection of which of the following is under neurosecretory nerve axons?

Question : Secrection of which of the following antagonistic hormones is not under the control of pituitary gland?

Question : Secondary was is not formed in

Question : Secrection of HCI in stomach in an example for…..

Question : Secondary wall grows in thickness by

Question : Secondary sewage treatment is mainly a:

Question : Secondary sewage treatment is mainly

Question : Secondary productivity is rate of formation of new organic matter by

Question : Secondary productivity is rate of formation of new organic matter by :

Question : Secondary producers are

Question : Secondary producers are:

Question : Secondary pollutants is/are:- (a) Brown air (b) Grey air (c) Acid Rain (d) DDT

Question : Secondary nucleus formed by the fusion of two polar nuclei is also called

Question : Secondary oocyte formation occurs in

Question : Secondary cortex underset("phloem")overset("Xylem")to Secondary ltbbrgt Phellem, Phellogen Which options are the odd ones associated with development from process of redifferentiation.

Question : Secondary egg membrane of human is formed by:-

Question : Second stage of hydrosere is occupied by plants like

Question : Secondary cell wall grows by:

Question : Second generation vaccines are prepared by recombinant DNA technology. Which of the following are the examples of such vaccines ?(A) Hepatitis B virus vaccine(B) Herpes virus vaccine(C) Salk's polio vaccine(D) Both (A) and (B)

Question : Second messengers are activated in response to

Question : Second generation vaccines are prepared by recombinant DNA technology. Which out of the following are the examples of such vaccines ?

Question : Second meiotic division during oogenesis is completed in

Question : Sebaceous glands are

Question : Sea weeds and few plants existed around …………... millions year ago.

Question : Sea Lemon is