24277 + Interview Questions in Biology in Class 12

1.	Question : NOR is characterised by the presence of abundant
Answer» Pseudogenes Repetitive DNA Repeated genes Multigenefamily GIVING RISE to DIFFERENT RNAS at different times. Solution :N//A

Discussion

2.	Question : Nor adrenaline secreted by sympathetic nervous system is inactivated by
Answer» Acetylecholine Acetylecholine esterase Dopamine Monamine OXIDASE ANSWER :D

Discussion

3.	Question : Number of bone in axisal skeleton of rabbit :-
Answer» 132 128 80 126 Answer :1

Discussion

4.	Question : Nonessential parts of flowers are
Answer» SEPALS and PETALS Sepals ANS CARPELS Sepals and gynoecium Androecium and gynaecium Answer :A

Discussion

5.	Question : Number of breeds of indian camels is
Answer» 2 3 4 5 Answer :D

Discussion

6.	Question : Non–obligatory mutualism is also known as –
Answer» Commensalism Proto–cooperation Helotism Exploitation Answer :B

Discussion

7.	Question : Number of bones pesent in human cranium is :
Answer» 8 10 12 16 Answer :1

Discussion

8.	Question : Nonionizing radiations with specific biological effects are
Answer» UV radiations Beta rays Gamma rays X-rays Answer :A

Discussion

9.	Question : Number of bones in cranium, face, hyoid and middle ear are respectively
Answer» 14, 8, 1 and 3 8, 14, 1 and 3 3, 8, 14 and 1. 14, 8, 3 and 1 Answer :B

Discussion

10.	Question :Nondisjunction may lead to a zygote containing XXY sex chromosomes, what sex would this produce in Drosophila and in humans?
Answer» SOLUTION : Female in Drosophila, and abnormal MALE SHOWING Klinefelter SYNDROME in humans

Discussion

11.	Question : Number of births per year per 1000 individual is
Answer» DEMOGRAPHY NATALITY Mortality Density ANSWER :B

Discussion

12.	Question : Nonalbuminous seeds occure in
Answer» Maize Wheat Rice Vallisneria Answer :D

Discussion

13.	Question : Number of base pairs in human chromosomes
Answer» `3 X 10^8` `3 x 10^9` `6X 10^9` `6x 10^6` ANSWER :B

Discussion

14.	Question : Non-viable seeds are produced by
Answer» SOMATIC embryogenesis Apomixis Hybridisation Parthenocarpy Answer :A

Discussion

15.	Question : Number of base pairs does pBR 322 plasmid contains..........
Answer» 322 4322 4361 3264 Answer :C

Discussion

16.	Question : Number of base pairs of DNA helix in a typical nucleosome
Answer» 200 100 500 2000 Answer :A

Discussion

17.	Question : Non-symbiotic nitrogen fixing prokaryote is
Answer» Frankia Azotobacter Rhizobium Nostoc Answer :B

Discussion

18.	Question : Number of ATP molecules released per quantum of light is called quantum yield.
Answer» ANSWER :OXYGEN

Discussion

19.	Question : Non pathogenic, bisexual nematode is
Answer» CAENORHABDITIS elegans Loa loa Enterobius vermicularis Ancylostoma duodenale Answer :A

Discussion

20.	Question : Number of ATP required to fix one molecule of nitrogen is
Answer» 8 ATP 16 ATP 18 ATP 5 ATP Answer :B

Discussion

21.	Question : Non-myelinated nerve fibres occur in
Answer» CRANIAL nerves Autonomic nerves Optic·nerves Spinal nerves Answer :B

Discussion

22.	Question : Number of ATP molecules formed through oxidative decarboxylation reactions when one Glucose molecule is oxidized in aerobic respiration
Answer» 11 19 15 12 Answer :D

Discussion

23.	Question : Non-primates: Oestrus cycle Primates: _____
Answer» SOLUTION :MENSTRUAL CYCLE

Discussion

24.	Question : Number of ATP generated in ETS on oxidation of reduced Co-enzymes produced in cytosol for one glucose molecule is
Answer» 4 ATP 36 ATP 32 ATP 6 ATP Answer :A

Discussion

25.	Question : _____number of ATP are produced during cyclic photophosphorylation
Answer» ANSWER :TWO

Discussion

26.	Question : Non-motile asexual spores formed in Vaucheria are
Answer» aplanospores autospores ZOOSPORES hypnospores Answer :D

Discussion

27.	Question : Numberand arrangementpresentoverrostellum of tapeworm are
Answer» `12-22` in onewhorl `22-32` in twowhorls `22-32` in onewhorl `12-22` in TWO whorls Answer :B

Discussion

28.	Question : Non-mitochondrial aerobic respiration occurs in
Answer» VIRUSES BACTERIA CYANOBACTERIA 2 and 3 ANSWER :D

Discussion

29.	Question : Nuisance growth of aquatic plants and bloom-forming algae in natural waters is gererally due to highconcentrations of
Answer» carbon sulphur calcium phosphorus. Solution :Phosphorus in the form of phosphates as well as nitrates act as nutrients for the bloom-forming ALGAE. Increased growth of algae because of these pollutants added to WATER bodies by human activities is called as cultural eutrophication. This LITERALLY, chokes the water body and lead to death of the organisms. Decomposition of these algae as well as dead water organisms, further deplete the dissolved oxygen content in water.

Discussion

30.	Question : Non medicated IUD and copper IUD
Answer» Solution :Non medicated IUD : First order non medicated type of IUD inserted in uterus of female for birth CONTROL / family PLANNING. Copper IUD : Copper based wire in uterus of female has strong ANTIFERTILITY. It is a SECOND order IUD.

Discussion

31.	Question : Nuisance growth of aquatic plants and bloom forming algae in natural waters is generally due to high concentrations of :(A) carbon(B) sulphur(C) calcium(D) phosphorus
Answer» carbon sulphur calcium phosphorus SOLUTION :Nuisance growth of aquatic plants and bloom. forming ALGAE in natural WATERS is generally DUE to high CONCENTRATIONS of phosphorus.

Discussion

32.	Question : Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of
Answer» PROTEIN SYNTHESIS MRNA rRNA tRNA Answer :C

Discussion

33.	Question : Nucleus of a donor embryonal cell/ somatic cell is transferred to a an enucleated egg cell. Then after the formation of organim , what shall be true ?
Answer» ORGANISM will have EXTRA - NUCLEAR GENES of thedonor CELL Organism will have extra - nuclear genes of recipient cell Organism will have extra - nuclear genes ofboth donor and recipient cell Organism will have nuclear genes of recipient cell Solution :The organism will have extranuclear genes of recipient cell. Since , the recipient cell has already been enucleated (its nucleus is removed), the organism developing from it would have the nuclear genes of donor cell.

Discussion

34.	Question : Nucleus of which cell controls the metabolic activity of sieve tube?
Answer» ANSWER :COMPANION CELL

Discussion

35.	Question : Non-genetic sex determination is found in :
Answer» FRUITFLY Bonellia Cow Birds Answer :B

Discussion

36.	Question : Nucleus develops from a pre-existing nucleus. The finding was made by
Answer» FARMER and Moore Winiwater Sutton Strasburger Answer :D

Discussion

37.	Question : Non - flagellate spores known as conidia are found in
Answer» PENICILLIUM HYDRA AMOEBA CHLAMYDOMONAS ANSWER :A

Discussion

38.	Question : Nucleous of the cell is a special region of chromatin where :
Answer» m-RNA is produced t-RNA is produced r-RNA is produced All the the above are produced Solution :CHROMATIN (CHROMOSOMES )has a speical region callled nucelous where RIBOSOMAL RNA (r-RNA) is a produced.

Discussion

39.	Question : Non endospermic seeds are present in :-
Answer» Castor Pea Maize Wheat Answer :B

Discussion

40.	Question : Nucleotides,prophyrins, polypeptides and other biochemicals developed nonezymatically in early broth due to
Answer» OXYGEN FREE atmosphere high termperature Irradiated environment All the above

Discussion

41.	Question : Non-essential floral orgens without differentiation of calyx and corolla are called
Answer» THALAMUS PEDICEL Perianth Lodicules. Answer :C

Discussion

42.	Question : Nucleotides arrangement in DNA can be seen by:
Answer» X-ray CRYSTALLOGRAPHY ELECTRON MICROSCOPE ultracentrifuge transcriptase ANSWER :A

Discussion

43.	Question : Nucleotide base pairs in an average gene
Answer» 1.5 millions 3000 2416 260 Answer :B

Discussion

44.	Question : Non - flagellate and non - motile spore are produced by(A) Ulothrix(B) Penicillium(C) Spirogyra(D) Zygnema
Answer» ULOTHRIX penicillium SPIROGYRA zygnema ANSWER :B

Discussion

45.	Question : Nucleotide arrangement in DNA can be seen by
Answer» X-ray crystallography Electron microscope Ultracentrifuge Light microscope Answer :A

Discussion

46.	Question : Nucleosome .
Answer» SOLUTION :

Discussion

47.	Question : Nucleoside is a nucleotide without …….. .
Answer» SUGAR NITROGEN base hydrogen bond phosphate group Answer :D

Discussion

48.	Question : Non-cyclic photophosphorylation differs from cyclic photophosphorylation in:
Answer» The latter has only PSI EVOLUTION of `o_2` REDUCTION of NADP Both(b) and(C) ANSWER :D

Discussion

49.	Question : Nucleoside is a nucleotide without ........
Answer» SUGAR NITROGEN base HYDROGEN. BOND phosphate group Answer :D

Discussion

50.	Question : Non-cyclic photophosphorylation differs from cyclic photophosphorylation
Answer» As it REQUIRES LIGHT energy In SYNTHESIS of ATP As it requires only PS-I As it involves photolysis of water Answer :D

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : NOR is characterised by the presence of abundant

Question : Nor adrenaline secreted by sympathetic nervous system is inactivated by

Question : Number of bone in axisal skeleton of rabbit :-

Question : Nonessential parts of flowers are

Question : Number of breeds of indian camels is

Question : Non–obligatory mutualism is also known as –

Question : Number of bones pesent in human cranium is :

Question : Nonionizing radiations with specific biological effects are

Question : Number of bones in cranium, face, hyoid and middle ear are respectively

Question :Nondisjunction may lead to a zygote containing XXY sex chromosomes, what sex would this produce in Drosophila and in humans?

Question : Number of births per year per 1000 individual is

Question : Nonalbuminous seeds occure in

Question : Number of base pairs in human chromosomes

Question : Non-viable seeds are produced by

Question : Number of base pairs does pBR 322 plasmid contains..........

Question : Number of base pairs of DNA helix in a typical nucleosome

Question : Non-symbiotic nitrogen fixing prokaryote is

Question : Number of ATP molecules released per quantum of light is called quantum yield.

Question : Non pathogenic, bisexual nematode is

Question : Number of ATP required to fix one molecule of nitrogen is

Question : Non-myelinated nerve fibres occur in

Question : Number of ATP molecules formed through oxidative decarboxylation reactions when one Glucose molecule is oxidized in aerobic respiration

Question : Non-primates: Oestrus cycle Primates: _____

Question : Number of ATP generated in ETS on oxidation of reduced Co-enzymes produced in cytosol for one glucose molecule is

Question : _____number of ATP are produced during cyclic photophosphorylation

Question : Non-motile asexual spores formed in Vaucheria are

Question : Numberand arrangementpresentoverrostellum of tapeworm are

Question : Non-mitochondrial aerobic respiration occurs in

Question : Nuisance growth of aquatic plants and bloom-forming algae in natural waters is gererally due to highconcentrations of

Question : Non medicated IUD and copper IUD

Question : Nuisance growth of aquatic plants and bloom forming algae in natural waters is generally due to high concentrations of :(A) carbon(B) sulphur(C) calcium(D) phosphorus

Question : Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis of

Question : Nucleus of a donor embryonal cell/ somatic cell is transferred to a an enucleated egg cell. Then after the formation of organim , what shall be true ?

Question : Nucleus of which cell controls the metabolic activity of sieve tube?

Question : Non-genetic sex determination is found in :

Question : Nucleus develops from a pre-existing nucleus. The finding was made by

Question : Non - flagellate spores known as conidia are found in

Question : Nucleous of the cell is a special region of chromatin where :

Question : Non endospermic seeds are present in :-

Question : Nucleotides,prophyrins, polypeptides and other biochemicals developed nonezymatically in early broth due to

Question : Non-essential floral orgens without differentiation of calyx and corolla are called

Question : Nucleotides arrangement in DNA can be seen by:

Question : Nucleotide base pairs in an average gene

Question : Non - flagellate and non - motile spore are produced by(A) Ulothrix(B) Penicillium(C) Spirogyra(D) Zygnema

Question : Nucleotide arrangement in DNA can be seen by

Question : Nucleosome .

Question : Nucleoside is a nucleotide without …….. .

Question : Non-cyclic photophosphorylation differs from cyclic photophosphorylation in:

Question : Nucleoside is a nucleotide without ........

Question : Non-cyclic photophosphorylation differs from cyclic photophosphorylation