Karnataka (2013) NEET Biology Questions

41. Which of the following has maximum genetic diversity in India?
a) Rice
b) Mango
c) Wheat
d) Groundnut
42. Which organization publishes the Red Data Book?
a. GEF
b. IUCN
c. UNEP
d. WWF
43. The largest tiger reserve in India is
a. Nagarhole
b. Valmiki
c. Nagarjunsagar-Srisailam
d. Periyar
44. The second commitment period for Kyoto Protocol was decided at
a. Cancun
b. Durban
c. Bali
d. Doha
45. Which one of the following is a primary consumer in maize field ecosystem?
a. Lion
b. Grasshopper
c. Wolf
d. Phytoplankton
46. The characteristics of class Reptilia are :
a. Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears
b. Body covered with moist skin which is devoid of scales, the ear is represented by a tympanum,alimentary canal, urinary and reproductive tracts open into a common cloaca
c. Fresh water animals with bony endoskeleton, air-bladder to regulate buoyancy
d. Marine animals with cartilaginous endoskeleton, body covered with placoid scales
47. Which one of the following animals is correctly matched with its one characteristics and the taxon?

Animal	Characteristic	Taxon
a) Duckbilled platypus	Oviparous	Mammalian
b) Milipede	Ventral nerve cord	Arachnida
c) Sea Anemone	Triploblastic	Cnidaria
d) Silverfish	Pectoral and Pelvic fins	Chordata

48. Which one of the following groups of animals reproduces only by sexual means?
a. Ctenophora
b. Cnidaria
c. Porifera
d. Protozoa
49. Sharks and dogfishes differ from skates and rays by
a. Their pectoral fins distinctly marked off from cyclindrical bodies
b. Gill slits are ventrally placed
c. Head and trunk are widened considerably
d. Distinct demarcation between body and tail



50. Identify the tissue shown in the diagram and match with its characteristics and its location
a. Skeletal muscle, shows striations and closely attached with the bones of the limbs
b. Smooth muscles, show branching, found in the walls of the heart
c. Cardiac muscles, unbranched muscles, found in the walls of the heart
d. Striated muscles, tapering at both-ends, attached with the bones of the ribs
Answers
41. a) Rice
42. b. IUCN
43. c. Nagarjunsagar-Srisailam
44. d. Doha
45. b. Grasshopper
46. a. Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears
47. a. Duckbilled platypus
48. a. Ctenophora
49. a. Their pectoral fins distinctly marked off from cyclindrical bodies
50. a. Skeletal muscle, shows striations and closely attached with the bones of the limbs.

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NEET(2013) Karnataka - Biology Questions and Answers

 31. Which of the following is not a property of the genetic code?
a. Universal
b. Non-overlapping
c. Ambiguous
d. Degeneracy
32. Genetic variation in a population arises due to
a. Mutations only
b. Recombination only
c. Mutations as well as recombination
d. Reproductive isolation and selection
33. Satellite RNAs are present in some
a. Plant viruses
b. Viroids
c. Prions
d. Bacteriophages
34. One of the most frequently used techniques in DNA fingerprinting is
a) AFLP
b) VNTR
c) SSCP
d) SCAR
35. Which one of the following vectors is used to replace the defective gene in gene therapy?
a. Ti plasmid
b. Adenovirus
c. Cosmid
d. Ri plasmid
36. Which of the following statements is not true about somatic embryogenesis?
a. A somatic embryo develops from a somatic cell
b. The pattern of development of a somatic embryo is comparable to that of a zygotic embryo
c. Somatic embryos can develop from microspores
d. Somatic embryo is induced usually by an auxin such as 2, 4-D
37. Genes of interest can be selected from a genomic library by using
a. Restriction enzymes
b. Cloning vectors
c. DNA probes
d. Gene targets
38. During the process of isolation of DNA, chilled ethanol is added to
a. Remove proteins such as histones
b. Precipitate DNA
c. Break open the cell to release DNA
d. Facilitate action of restriction enzymes
39. RNA interference involves
a. Synthesis of mRNA from DNA
b. Synthesis of cDNA from RNA using reverse transcriptase
c. Silencing of specific mRNA due to complementary RNA
d. Interference of RNA in synthesis of DNA
40. Benthic organisms are affected most by
a) Water-holding capacity of soil
b) Light reaching the forest floor
c) Surface turbulence of water
d) Sediment characteristics of aquatic ecosystems
Answers
31. c. Ambiguous
32. c. Mutations as well as recombination
33. a. Plant viruses
34. b) VNTR
35. b. Adenovirus
36. c. Somatic embryos can develop from microspores
37. c. DNA probes
38. b. Precipitate DNA
39. c. Silencing of specific mRNA due to complementary RNA
40. d) Sediment characteristics of aquatic ecosystems

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NEET UG Karnataka 2013 Biology Questions and Answers

 21. The pineapple which under natural conditions is difficult to blossom has been made to produce fruits throughout the year by application of

a. IAA, IBA
b. NAA, 2, 4-D
c. Phenyl acetic acid
d. Cytokinin
22. Which of the following elements is a constituent of biotin?
a. Sulphur
b. Magnesium
c. Calcium
d. Phosphorus
23. Bundle sheath cells
a. Are rich in Rubisco
b. Are rich in PEP carboxylase
c. Lack RuBisCo
d. Lack both RuBisCo and PEP carboxylase
24. Which one of the following statements is correct?
a. Geitonogamy involves the pollen and stigma offlowers of different plants
b. Cleistogamous flowers are always autogamous
c. Xenogamy occurs only by wind pollination
d. Chasmogamous flowers do not open at all
25. Megaspores are produced from the megaspore mother cells after
a. Meiotic division
b. Mitotic division
c. Formation of a thick wall
d. Differentiation
26. Syngamy can occur outside the body of the organism in
a. Fungi
b. Mosses
c. Algae
d. Ferns
27. Animal vectors are required for pollination in
a. Maize
b. Vallisneria
c. Mulbery
d. Cucumber
28. Which of the following statements is correct?
a. Sporopollenin can withstand high temperatures but not strong acids
b. Sporopollenin can be degraded by enzymes
c. Sporopollenin is made up of inorganic materials
d. Sporopollenin can withstand high temperatures as well as strong acids and alkalis
29. Albuminous seeds store their reserve food mainly in
a. Perisperm
b. Endosperm
c. Cotyledons
d. Hypocotyl
30. Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
a. Mutation
b. Migration
c. Natural selection
Genetic drift
Answers
21. b. NAA, 2, 4-D
22. a. Sulphur
23. a. Are rich in Rubisco
24. b. Cleistogamous flowers are always autogamous
25. a. Meiotic division
26. c. Algae
27. d. Cucumber
28. d. Sporopollenin can withstand high temperatures as well as strong acids and alkalis
29. b. Endosperm
30. Genetic drift

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NEET Karnataka 2013 Biology Questions and Answers

11. Meristematic tissue responsible for increase in girth of tree trunk is

a) Apical meristem

b) Intercalary meristem

c) Lateral meristem

d) Phellogen

12. Inflorescence is racemose in

a. Soyabean

b. Brinjal

c. Tulip

d. Aloe

13. During the metaphase stage of mitosis spindle fibres attach to chromosomes at

a. Centromere

b. Kinetochore

c. Both centromere and kinetochore

d. Centromere, kinetochore and areas adjoining centromere

14. Uridine, present only in RNA is a

a. Pyrimidine

b. Nucleoside

c. Nucleotide

d. Purine

15. The term 'glycocalyx' is used for

a. A layer surrounding the cell wall of bacteria

b. A layer present between cell wall and membrane of bacteria

c. Cell wall of bacteria

d. Bacterial cell glyco-engineered to possess N-glycosylated proteins

16. Which of the following type of plastids does not contain stored food material?

a. Amyloplasts

b. Chromoplasts

c. Eleioplasts

d. Aleuroplasts

17. During meiosis I, the chromosomes start pairing at

a. Leptotene

b. Zygotene

c. Pachytene

d. Diplotene

18. Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere?

a. Anaerobic ammonium oxidation, and denitrification

b. Aerobic nitrate oxidation, and nitrite reduction

c. Decomposition of organic nitrogen, and conversion of dinitrogen to ammonium compounds

d. Enteric fermentation in cattle, and nitrogen fixation by Rhizobium in root nodules of legumes

19. Which of the following best illustrates feedback in development?

a. As tissue (X) develops, it secretes something that slows down the growth of tissue (Y)

b. Tissue (X) secretes RNA which changes the development of tissue (Y)

c. As tissue (X) develops, it secretes enzymes that inhibit the development of tissue (Y)

d. As tissue (X) develops, it secretes something that induces tissue (Y) to develop

20. The viability of seeds is tested by

a. Safranine

b. 2, 6 dichlorophenol indophenols

c. 2, 3, 5 triphenyl tetrazolium chloride

d. DMSO

Answers

11. c) Lateral meristem

12. a. Soyabean

13. b. Kinetochore

14. b. Nucleoside

15. a. A layer surrounding the cell wall of bacteria

16. b. Chromoplasts

17. b. Zygotene

18. a. Anaerobic ammonium oxidation, and denitrification

19. d. As tissue (X) develops, it secretes something that induces tissue (Y) to develop

20. c. 2, 3, 5 triphenyl tetrazolium chloride

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