24277 + Interview Questions in Biology in Class 12 Page 403 InterviewSolution

20101.	Question : By which, from the following radiation waste not arises ?
Answer» NUCLEAR cleavage Nuclear TECHNOLOGY EXPERIMENT Nuclear energy Nuclear ELECTRICITY ANSWER :D

Discussion

20102.	Question : By which enzyme the newly synthesized chain is formed in DNA ?
Answer» DNA polymerase Phosphodiesterase DNA polymerase-II DNA-polymerase-II SOLUTION :DNA polymerase-III

Discussion

20103.	Question : By which cells present in blood, the primary and secondary immunity response is given ?
Answer» LYMPHATIC CELLS Phagocytes PMNL NEUTRAL cells Killer cells SOLUTION :Lymphatic cells

Discussion

20104.	Question : By which duct vas deferens moves further before forming a loop around urinary bladder?
Answer» EJACULATORY duct INGUINAL duct Epididymis BULBOURETHRAL GLAND Answer :B

Discussion

20105.	Question : By which cell present in the blood primary and secondary immunity response is given ?
Answer» LYMPHATIC CELLS phagocytes PMNL NEUTRAL cells killer cells SOLUTION :lymphatic cells

Discussion

20106.	Question :By which arrangements, governmental and non-governmental organization are making efforts for reproductive health ?
Answer» Solution :With the help of audio - visual and the print media governmental and non-governmental agencies have taken various steps to CREATE awareness among the people about reproduction related ASPECTS. Parents, close relatives, teachers and friends also have a major role in the dissemination of the above information Introduction of sex education in schools should also be encouraged to provide right information to the young so as to discourage children from believing in myths and having misconception about sex related aspects. Proper information about reproductive organs, adolescences and related changes, safe and hygienic sexual practices, sexually transmitted diseases (STD), AIDS, etc would help people especially those in the adolescent age group to lead a reproductively healthy life. Educating people, especially fertile couples and those in marriageable age group about available birth control options, care of the pregnant mothers, post natal, care of pregnant mother and CHILD, importance of breast feeding, equal opportunities for the male and the female child etc., would address the importance of bringing up socially conscious healthy families of desired size. Awareness of problems DUE to uncontrolled population growth, social evils like sex abuse and sex related crimes etc., need to be CREATED to enable people to think and take up necessary steps to prevent them and thereby build up a socially responsible and healthy society.

Discussion

20107.	Question : By which agents is pollination carried out in Eichhornia and Lotus?(A) Water(B) Insects and wind(C) Birds(D) Bats
Answer» WATER INSECTS and wind Birds Bats Answer :B

Discussion

20108.	Question : By what type of hybridization "Mule. is achieved ?
Answer» INTERSPECIFIC HYBRIDIZATION Outbreeding Inbreeding Inner Hybridization SOLUTION :Interspecific hybridization

Discussion

20109.	Question :By what sterilization in male is called?
Answer» VASECTOMY TUBECTOMY Laproscopy All of the GIVEN ANSWER :A

Discussion

20110.	Question : By what of the following acrosome is formed?
Answer» GOLGI bodies Centrosome Nucleus BASAL nodules Answer :A

Discussion

20111.	Question : By what name the tissue surrounded by mature ovum is known as ?
Answer» FOLLICLES OVARIAN follicles Graafian follicles A and B both Answer :C

Discussion

20112.	Question : By what name the milk secreted during the initial days of lactation is called?
Answer» COLOSTRUM ANTIBODY B Antigen A All of the above Answer :A

Discussion

20113.	Question : By what name the process of determination and collection of the sequence of nucleotides known ?
Answer» DATABASE Gene mapping HGP GENOMICS SOLUTION :Database

Discussion

20114.	Question : By what name the large middle layer of uterus is known as?
Answer» ENDOMETRIUM MYOMETRIUM Apimetrium EPIDERMIS ANSWER :B

Discussion

20115.	Question : By what name is cotyledon of maize seed is known ?
Answer» Coleorrhiza Coleoptile Scutellum Plumule Answer :C

Discussion

20116.	Question : By what name are sperms known before passing from spermiogenesis?
Answer» SPERMATID PRIMARY SPERMATOCYTE Secondary spermatocyte NONE ANSWER :A

Discussion

20117.	Question : By what milk is converted into curd ?(A) Zanthomonas citri(B) Lactobacillus acidophilus(C) Acetobacter aceti(D) None of the above
Answer» Zanthomonas citri LACTOBACILLUS acidophills Acetobacter Aceti None of the above SOLUTION : Lactobacillus acidophills

Discussion

20118.	Question : By what Latin name the first hominid was known?
Answer» SOLUTION :HOMO habiIis- first HOMINID with brain capacity 650-800cc.

Discussion

20119.	Question : By what does Elephantiasis occur?
Answer» The PRESENCE of filarial worm VIRUS on the wall By HIRING of Filarial worm MICRO filarial Dead matured filarials SOLUTION :Micro filarial

Discussion

20120.	Question : By using proteins from TMV (Tobacco-mosaic virus) and RNA from HRV (Holmes ribrass virus), a chimeric virus particle was synthesized by Fraenkel-conrat and singer. It was then used for infection of tobacco leaves. They found that
Answer» no INFECTION was there as TOBACCO PLANT infection by DNA viruses only leaves developed symptoms of TMV and HRV both leaves developed symptoms of TMV leaves developed symptoms of HRV Answer :D

Discussion

20121.	Question : Bytheuse of biotechnology , in whichbacteriaproductionof vitamin- B_(12)hasbeenincreased toabout 20000 times ?
Answer» Ashbya gossypii E. COLI PSEUDOMONAS denitrificans Propionibacterium shermanii ANSWER :A

Discussion

20122.	Question : By using the diagram, give the answer of following questions (a) Name of plant ? (b) Ploidy of plant ? (c) Lify cycle of plant ? (d) Plant homosporous or heterosporus ?
Answer» `{:((a),(b),(C),(d),),("salvinia",2N,"Diplohaplontic","HETEROSPOROUS",):}` `{:((a),(b),(c),(d),),("Slaginella",2n,"Diplohaplontic","Heterosporous",):}` `{:((a),(b),(c),(d),),("PTERIDIUM",2n,"Diplohaplontic","Heterosporous",):}` `{:((a),(b),(c),(d),),("Cycas",2n,"Diplohaplontic","Heterosporous",):}` Answer :A

Discussion

20123.	Question :By using which bacteria methane is produced ?(A) Methanogenic bacteria(B) Lactobacillus(C) Methanocarpic bacteria(D) Methilophills
Answer» Methanogenic BACTERIA Lactobacillus Methanocarpic bacteria Methilophills SOLUTION : Methanogenic bacteria

Discussion

20124.	Question : By the statement 'survival of the fittest', Darwin meant that
Answer» the strongest of all species SURVIVES the most INTELLIGENT of the species survives the cleaverest of the species survives the species most adaptatble to changes survives. SOLUTION :The organism which are provided with favourable variations would survive, because they are the fittest to face their surroundings. While the unfit are eliminated. Originally it was an idea or Herbert Spencer (1820-1903) who used the phase the survival of the fittest first time while Darwin named it as NATURAL selection.

Discussion

20125.	Question :By the statement 'survival of the fittest', Darwin meant that
Answer» the strongest of all SPECIES survives the most INTELLIGENT of the species survives the cleaverest of the species survives the species most adaptable to CHANGES survives. Answer :D

Discussion

20126.	Question : By thereaction of alpha- ketoglutaric acid withammonia, through whichof the process glutamic acid is formed?
Answer» OXIDATIVE amination reductive amination ammonification transamination Answer :2

Discussion

20127.	Question : By the process of leaching ,……..... nutrients go down into the soil horizon and get precipitated .
Answer» WATER soluble , inorganic water INSOLUBLE, inorganic water soluble, ORGANIC water insoluble, organic Answer :A

Discussion

20128.	Question : By the help of DNA fingerprinting from the blood stains on the cloths of Abraham Lincoln, his which deficiency was discovered ?
Answer» TURNER SYNDROME KLINE felter's syndrome Marfan's syndrome Malaria, TYPHOID SOLUTION :Marfan.s syndrome

Discussion

20129.	Question : By the fermentation of what the ensilage is made ?
Answer» CARBOHYDRATES LIPID Protein Palm TREE EXTRACT SOLUTION :Carbohydrates

Discussion

20130.	Question : By the broad knowledge of which fields the microbes are used in different ways for human welfare?(A) Biotechnology and genetic engineering(B) Microbiology and Biostatistics(C) Biochemistry and Biostatistics(D) Biochemistry and Biophysics
Answer» BIOTECHNOLOGY and GENETIC ENGINEERING Microbiology and Biostatistics Biochemistry and Biostatistics Biochemistry and Biophysics Solution : Biotechnology and genetic engineering

Discussion

20131.	Question : By the end of 2002 the public transport of Delhi switched over to a new fuel. Name the fuel. Why is this fuel considered better? Explain.
Answer» Solution :Delhi Government shifted to CNG (Compressed NATURAL Gas). CNG is better because it burns more efficiently unlike petrol or diesel, in automobiles and very little of it is left UNBURNT. Also CNG is CHEAPER fuel than petrol and diesel and cannot be adulterated like diesel and petrol and also cannot be stolen AWAY.

Discussion

20132.	Question : By the cross of F_(1) linked dihybrid plant with a plant of genotype aabb, we get the 1300 plants out of 2000 of parental type. The distance between A and B gene is :-
Answer» 35 MAP unit 15 map unit 65 map unit 65 KELLO meter Answer :A

Discussion

20133.	Question :By the efforts of which institutes, biogas technology is developed ?(A) IARI & KVIC(B) IARI(C) IARI & ICZN(D) KVIC & ICZN
Answer» IARI & KVIC IARI IARI & ICZN KVIC & ICZN Solution : IARI & KVIC

Discussion

20134.	Question :By taxonomic keys we can observe or analyse the characters of not only one member but also of the other related members because at a time couplets are used in keys in which acceptance of only one and rejection of the other character is there. This practice in taxonomic keys prove which of the following assessment most effectively?
Answer» In keys CHARACTERS are used in PAIRS (couplet) In keys TWO opposite options are used for every member at a time Keys are GENERALLY analytical in nature Keys are able to explain about nonlivings also Answer :C

Discussion

20135.	Question : By sexual reproduction oocyst is converted in to …….....
Answer» Sporozoite Trothozoite Merozoite Gemozoite SOLUTION :Trothozoite

Discussion

20136.	Question : By observing the relationship of the first pair fills up the blanks . Net primary productivity = Gross primary productivity - Respiration. Gross primary productivity is ………………………….
Answer» SOLUTION :TOTAL ORGANIC MATTER

Discussion

20137.	Question : By observing the relationship of the first pair fills up the blanks . Carbon : Gaseous cycle Phosphorus : ………………………….
Answer» SOLUTION :SEDIMENTARY CYCLE

Discussion

20138.	Question : By observing the relationship of thefirst ,fill in the blanks.Unisexual male flower-staminateUnisexual female flower- ………………………...
Answer» SOLUTION :PISTILLATE

Discussion

20139.	Question : By observing the relationship of the first, fill up the blanks (a ) Unisexual male flower : Staminate Unisexual female flower : _____
Answer» SOLUTION :PISTILLATE

Discussion

20140.	Question : By observing the relationship of thefirst ,fill in the blanks.Organisms tolerating a wide range of temperature-eurythermalOrganisms tolerating a narrowrange of temperature- …………………..
Answer» SOLUTION :stenonthermal

Discussion

20141.	Question : By observing the relationship between the first pair , write the missing word . a. Plants : Producers :: Animals :………… b. Food chain : food web :: Ecosystem :…………
Answer» SOLUTION :a. CONSUMERS B. BIOSPHERE

Discussion

20142.	Question : By observing the relationship between the first pair fill up the blankes. BAC - Bacterial artificial chromosome YAC ________
Answer» SOLUTION :YEAST ARTIFICIAL CHROMOSOME

Discussion

20143.	Question : By observing the relationship between the first pair fill up the blanks. Adenine - Purine Thymine - _____
Answer» SOLUTION :PYRIMIDINE

Discussion

20144.	Question : By observing the relatinship of first pair, fill up the blanks. Carbon = Gaseous cycle Phosphorus : _____
Answer» SOLUTION :SEDIMENTARY CYCLE.

Discussion

20145.	Question : By observing the relationship of first pair, fill up the blanks. A. Net primary productivity = Gross primary productivity - Respiration. Gross primary productivity is _____
Answer» SOLUTION :Net primary productivity + RESPIRATION = Gross primary productivity

Discussion

20146.	Question : Byobserving the given pair fill up the blanksa. Cutting DNA : Restriction endonuclease : : Joining DNA : . . . .b. i. Chitiase : Fungus : : Cellulose : . . . .c. Protein : Protease : : RNA : . . . .
Answer» ANSWER :a. DNA ligase,b.Plant CELLS ,c. Ribonuclease

Discussion

20147.	Question : By observing the given diagram. Identify and explain.
Answer» SOLUTION :Binary fission in Amoeba Where a cell divides into two HALVES and each RAPIDLY grown into an adult.

Discussion

20148.	Question : Observe the given diagram and identify the asexual reproductive structure
Answer» SOLUTION :HYDRA - BUDS

Discussion

20149.	Question : Observe the given diagram and identify the asexual reproductive structure
Answer» SOLUTION :SPONGES - GEMMULES

Discussion

20150.	Question : Observe the given diagram and identify the asexual reproductive structure
Answer» SOLUTION :PENICILLIUM - CONIDIA

Discussion

Explore topic-wise InterviewSolutions in .

Question : By which, from the following radiation waste not arises ?

Question : By which enzyme the newly synthesized chain is formed in DNA ?

Question : By which cells present in blood, the primary and secondary immunity response is given ?

Question : By which duct vas deferens moves further before forming a loop around urinary bladder?

Question : By which cell present in the blood primary and secondary immunity response is given ?

Question :By which arrangements, governmental and non-governmental organization are making efforts for reproductive health ?

Question : By which agents is pollination carried out in Eichhornia and Lotus?(A) Water(B) Insects and wind(C) Birds(D) Bats

Question : By what type of hybridization "Mule. is achieved ?

Question :By what sterilization in male is called?

Question : By what of the following acrosome is formed?

Question : By what name the tissue surrounded by mature ovum is known as ?

Question : By what name the milk secreted during the initial days of lactation is called?

Question : By what name the process of determination and collection of the sequence of nucleotides known ?

Question : By what name the large middle layer of uterus is known as?

Question : By what name is cotyledon of maize seed is known ?

Question : By what name are sperms known before passing from spermiogenesis?

Question : By what milk is converted into curd ?(A) Zanthomonas citri(B) Lactobacillus acidophilus(C) Acetobacter aceti(D) None of the above

Question : By what Latin name the first hominid was known?

Question : By what does Elephantiasis occur?

Question : By using proteins from TMV (Tobacco-mosaic virus) and RNA from HRV (Holmes ribrass virus), a chimeric virus particle was synthesized by Fraenkel-conrat and singer. It was then used for infection of tobacco leaves. They found that

Question : Bytheuse of biotechnology , in whichbacteriaproductionof vitamin- B_(12)hasbeenincreased toabout 20000 times ?

Question : By using the diagram, give the answer of following questions (a) Name of plant ? (b) Ploidy of plant ? (c) Lify cycle of plant ? (d) Plant homosporous or heterosporus ?

Question :By using which bacteria methane is produced ?(A) Methanogenic bacteria(B) Lactobacillus(C) Methanocarpic bacteria(D) Methilophills

Question : By the statement 'survival of the fittest', Darwin meant that

Question :By the statement 'survival of the fittest', Darwin meant that

Question : By thereaction of alpha- ketoglutaric acid withammonia, through whichof the process glutamic acid is formed?

Question : By the process of leaching ,……..... nutrients go down into the soil horizon and get precipitated .

Question : By the help of DNA fingerprinting from the blood stains on the cloths of Abraham Lincoln, his which deficiency was discovered ?

Question : By the fermentation of what the ensilage is made ?

Question : By the broad knowledge of which fields the microbes are used in different ways for human welfare?(A) Biotechnology and genetic engineering(B) Microbiology and Biostatistics(C) Biochemistry and Biostatistics(D) Biochemistry and Biophysics

Question : By the end of 2002 the public transport of Delhi switched over to a new fuel. Name the fuel. Why is this fuel considered better? Explain.

Question : By the cross of F_(1) linked dihybrid plant with a plant of genotype aabb, we get the 1300 plants out of 2000 of parental type. The distance between A and B gene is :-

Question :By the efforts of which institutes, biogas technology is developed ?(A) IARI & KVIC(B) IARI(C) IARI & ICZN(D) KVIC & ICZN

Question : By sexual reproduction oocyst is converted in to …….....

Question : By observing the relationship of the first pair fills up the blanks . Net primary productivity = Gross primary productivity - Respiration. Gross primary productivity is ………………………….

Question : By observing the relationship of the first pair fills up the blanks . Carbon : Gaseous cycle Phosphorus : ………………………….

Question : By observing the relationship of thefirst ,fill in the blanks.Unisexual male flower-staminateUnisexual female flower- ………………………...

Question : By observing the relationship of the first, fill up the blanks (a ) Unisexual male flower : Staminate Unisexual female flower : _____

Question : By observing the relationship of thefirst ,fill in the blanks.Organisms tolerating a wide range of temperature-eurythermalOrganisms tolerating a narrowrange of temperature- …………………..

Question : By observing the relationship between the first pair , write the missing word . a. Plants : Producers :: Animals :………… b. Food chain : food web :: Ecosystem :…………

Question : By observing the relationship between the first pair fill up the blankes. BAC - Bacterial artificial chromosome YAC ________

Question : By observing the relationship between the first pair fill up the blanks. Adenine - Purine Thymine - _____

Question : By observing the relatinship of first pair, fill up the blanks. Carbon = Gaseous cycle Phosphorus : _____

Question : By observing the relationship of first pair, fill up the blanks. A. Net primary productivity = Gross primary productivity - Respiration. Gross primary productivity is _____

Question : Byobserving the given pair fill up the blanksa. Cutting DNA : Restriction endonuclease : : Joining DNA : . . . .b. i. Chitiase : Fungus : : Cellulose : . . . .c. Protein : Protease : : RNA : . . . .

Question : By observing the given diagram. Identify and explain.

Question : Observe the given diagram and identify the asexual reproductive structure

Question : Observe the given diagram and identify the asexual reproductive structure

Question : Observe the given diagram and identify the asexual reproductive structure