2016 NEET Biology Solved Paper

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Previous Year Paper Biology - 2016
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Biology NEET 2016
Exam Year 2016
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• Multiple Choice Questions
• Microtubules are the constituent of spindle
  ?bres, centrioles and cilia
• centrioles, spindle ?bres and chromatin
  centrosome, nucleosomes and centrioles cilia,
  ?agella and peroxisomes
• Answer
• Mitochondria and choloroplast are
• semi-autonomous organelles.
• formed by division of pre-existing organelles and
  they contain DNA but lack protein synthesizing
  machinery.
• II is true but I is false I is true but II is
  false Both I and II are false
• Both I and II are correct Answer
• Photosensitive compound in human eye is made up
  of opsin and Retinal
• opsin ans Retinol transducin and Retinene
  guanosine and Retinol
• Answer
• Chrysophytes, euglenoids, dino?agellates and
  slime moulds are included in the kingdom
  Protista
• Fungi Animalia Monera
• Answer
• The primitive prokaryotes responsible for the
  production of biogas from the dung of ruminant
  animals, include the
• thermoacidophiles methanogens eubacteria
  halophiles

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Biology NEET 2016
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Answer 6. Which of the following characteristic
features always holds true for the corresponding
group of animals? Viviparous Mamalia
Posess a mouth with an upper and lower jaw
Chordata
3-chmbered heart with one incompletely divided
ventricle
Reptilia

• Cartiliginous- endoskeleton Chondrichthyes
• Answer
• Tricarpellary, syncarpous gynoecium is found in
  ?owers of Solanaceae
• Fabaceae Poaceae Liliaceae
• Answer
• In which of the following, all three are
  macronutrients Iron, copper, molybdenum
• Molybdenum, magnesium, manganese Nitrogen,
  nickel, phosphorous
• Boron, zinc, manganese Answer
• Reduction in pH of blood will
• reduce the blood supply to the brain
• decrease the a?nity of haemoglobin with oxygen
  release bicarbonate ions by the liver
• reduce the rate of heart beat Answer
• Lack of relaxation between successive stimuli in
  sustained muscle contraction is known as fatigue
• tetanus tonus spasm
• Answer

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Biology NEET 2016
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• Which one of the following statements is wrong?
• Golden algae are also called desmids Eubacteria
  are also called false bacteria Phycomycetes are
  also called algal fungi Cyanobacteria are also
  called blue-green algae
• Answer
• Water vapour comes out from the plant leaf
  through stomatal opening. through the same
  stomatal opening. carbon dioxide di?uses into
  the plant during photosynthesis. Reason out the
  above statements using the following options
• Both processes can happen together because the
  di?usion coe?cient of water and CO2 is di?erent
  The above processes happen only during night time
• One process occurs during day time and other at
  night
• Both processes cannot happen simultaneously
  Answer
• Cotyledon of maize grain is called coleorhiza
• caleoptile scutellum plumule
• Answer
• Which of the following guards the opening of
  hepatopancreatic duct into the duodenum?
  illeocaecal valve
• Pyloric sphincter Sphincter of Oddi Semilunar
  valve
• Answer
• In the stomach, gastric acid is secreted by the
  parietal cells
• peptic cells acidic cells
• gastrin-secreting cells Answer
• In mammals, which blood vessel would normally
  carry largest amount of urea? Dorsal aorta

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Biology NEET 2016
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• Hepatic vein
• Hepatic portal vein Renal vein
• Answer
• Which of the following is not a stem modi?cation?
  thorns of citrus
• tendrils of cucumber
• Flattened structures of Opuntia Pitcher of
  Nepenthes
• Answer
• Which one of the following cell organelles is
  enclosed by a single membrane? Chloroplasts
• Lysosomes Nuclei Mitochondria
• Answer
• Which one of the following statements is wrong?
  cellulose is a polysaccharide
• Uracil is a pyrimidine
• Glycine is a sulphur containing amino acid
  Sucrose is a disaccharide
• Answer
• Which one of the following characteristics is not
  shared by birds and mammals? Breathing using
  lungs
• Viviparity
• Warm-blooded nature Ossi?ed endoskeleton
• Answer
• The amino acid, trytophan is the precussor for
  the synthesis of thyroxine and tri-iodothryonine

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Biology NEET 2016
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• peptidoglycan
• cellulose hemicellulose chitin
• Answer
• A complex of ribosomes attached to a single
  strand of RNA is known as Polymer
• Polypeptide Okazaki's fragment Polysome
• Answer
• Which of the following features is not present in
  the phylum-Arthropoda? Metameric segmentation
• Parapodia
• Jointed appendages Chitinous exoskeleton
• Answer
• The Avena curvature is used for bioassay of GA3
• IAA
• Ethylene ABA
• Answer
• A typical fat molecule is made up of
• One glycerol and three fatty acid molecules One
  glycerol and one fatty acid moleule Thre
  glycerol and three fatty acid molecules
• Three glycerol molecules and one fatty acid
  molecule Answer
• Which of the following features is not present in
  Periplaneta americana? Indeterminate and radical
  cleavage during embryonic development
  Exoskeleton composed of N-acetylglucosamine
• Metamerically segmented body Schizocoelom as
  body cavity

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• Answer
• Water-soluble pigments found in plant cell
  vacuoles are chlorophylls
• carotenoids anthocyanins xanthophylls
• Answer
• A cell at telophase stage is observed by a
  student in a plant brought from the ?eld. He
  tells his teacher that this cell is not like
  other cells at telophase stage. there is no
  formation of cell plate and thus the cell is
  containing more number of chromosomes as compares
  to other dividing cells. This would result in
• polyploidy somaclonal variation polyteny
• aneuploidy Answer
• A plant in your garden avoids photorespiratory
  losses, has improved water use e?ciency, shows
  high rate of photosynthesis at high temperatures
  and has improved e?ciency of nitrogen
  utilisation. In which of the following
  physiological groups would you assign this plant?
• C4 CAM
• Nitogen-?xer
• C3
• Answer
• Emerson's enhancement e?ect and red drop have
  instrumental in the discovery of two
  photosystems operating simultaneously
• photophosphorylation and cyclic electron
  transport oxidative phosphorylation
• phosphorylation and non-cyclic electron transport
  Answer
• Select the correct statement
• Salvinia, Gingko and Pinus all are gymnosperm
  Sequoia is oneis one ot the talles trees
• The leaves of gymnosperm are not well adapted to
  extremes of climate Gymnosperms are both
  homosporous and heterosporous

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• Answer
• Which of the following is not a characteristic
  feature during mitosis in somatic cells?
  Disappearance of nucleolus
• Chromosome movement Synapsis
• Spindle ?bres Answer
• Blood pressure in the pulmonary artery is more
  than that in the carotid
• more than that in the pulmonary vein less than
  that in the Vena cava
• same as that in the aorta Answer
• Spindle ?bres attach on to
• kinetochore of the chromosome centrosome of the
  chromosome kinetosome of the chromosome
  telomere of the centrosome
• Answer
• Stems modi?ed into ?at green organs performing
  the functions of leaves are known as phyllodes
• phylloclades scales cladodes
• Answer
• In a chloroplast the highest number of protons
  are found in lumen of thylakoids
• inter membrane space antennae complex stroma
• Answer
• Nomenclature is governed by certain universal
  rules. Which one of the following is contrary to
  the rules of nomenclature?
• The ?rst word in biological name represents the
  genus name and the second is a speci?c epithet
  The names are written in Latin and are Italicised

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• When written by hand, the names are to be
  underlined
• Biological names can be written in any language
  Answer
• In meiosis crossing over is initiated at
  leptotene
• zygotene diplotene pachytene
• Answer
• The standard petal of papilionaceae corola is
  also called pappus
• vexillum corona carina
• Answer
• Which of the following statements is wrong for
  viroids? They are smaller than viruses
• They cause infections
• Their RNA is of high molecular weight They lack
  a protein coat
• Answer
• Which type of tissue correctly matches with its
  location?
• Tissue Location

Areolar tissue
Tendons
Tissue
Location
ATransitional epithelium
Teip of nose
Tissue
Location
Cuboidal epithelium
Tlining of stomach
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Tissue
Location
Smooth muscle Wall of intestine Answer 43. Which
of the following pairs of hormones are not
antagonistic (having opposite e?ects) to each
other? Insulin Glucagon Aldosterone Atrial
Natriuretic Factor
Relaxin
Inhibin

• Parathormone Calcitonin
• Answer
• Specialised epidermal cells surrounding the guard
  cells are called sunbsidiary cells
• bulliform cells lenticels complementary cells
• Answer
• Which of the following is wrongly matched in the
  given table?
• Microbe Product Application

Lowering of Statins blood cholesterol
Monascus purpureus
Microbe
Product
Application
Removal
Streptococcus Streptokkinase of clot
from blood vessel
Microbe
Product Application
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Biology NEET 2016
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Clostridium Lipase Removal of buylicum oil
stains
Microbe
Product
Application

• Trichoderma Cyclosporin-A Immunosuppressive
  polysporum drug
• Answer
• Changes in GnRH pulse frequency in females is
  controlled by circulating levels of estrogen and
  inhibin
• progesterone only progesterone and inhibin
  estrogen and progesterone
• Answer
• Identify the correct statement on 'inhibin'
• is produced by granulosa cells in ovary and
  inhibits the secretion of FSH is produced by
  granulosa cells in ovary and inhibits the
  secretion of LH is produced by nurse cells in
  testes and inhibits the secretion of LH inhibits
  the secretion of LH, FSH and prolactin
• Answer
• It is much easier for a small animal to run
  uphill than a large animal, because smaller
  animals have a higher metabolic rate
• small animals have a lower O2 requirement
• the e?ciency of muscles in large animals in less
  than in the small animals it is easier to carry
  a small body weight
• Answer
• A tall true breeding garden pea plant is crossed
  with a dwarf true breeding garden pea plant. When
  the F1
• plants were selfed the resulting genotypes were
  in ratio of 121 Tall heterozygous Tall
  homozygous Dwarf 31 Tall Dwarf
• 31 Dwarf Tall
• 121 Tall homozygous Tall heterozygous
  Dwarf Answer
• Depletion of which gas in the atmosphere can lead
  to an increased incidence of skin cancers

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Biology NEET 2016
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• ozone
• ammonia methane nitrous oxide
• Answer
• Which one of the following is a characteristic
  feature of cropland ecosystem? Least genetic
  diversity
• The absence of weeds Ecological succession
• The absence of soil orgnaisms Answer
• Which of the following is a restriction
  endonuclease? Protease
• DNase I RNase Hind II
• Answer
• Which of the following would appear as the
  pioneer organisms on bare rocks? Liverworts
• Mosses Green algae Lichens
• Answer
• The term ecosystem was coined by AG Tansley
• E Haeckel E Warrning EP Odum
• Answer
• Which of the following is required as inducer(s0
  for the expression of lac operon? galactose
• lactose
• lactose and galactose glucose
• Answer

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Biology NEET 2016
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• When does the growth rate of a population
  following the logistic model equal zero? The
  logistic model is
• given as dN/dt rN(1-N/K)
• when N nears the carrying capacity of the habitat
  when N/K equals zero
• when death rate is greater than birth rate when
  N/K is exactly 1
• Answer
• Which one of the following statements is not
  true? Exine of pollen grains is made up of
  sporopollenin
• Pollen grains of many species cause severe
  allergies
• Stored pollen in liquid nitrogen can be used in
  the crop breeding programmes Tapetum helps in
  the dehiscence of anther
• Answer
• In bryophytes and pteridophytes, transport of
  male gametes requires insects
• birds water wind
• Answer
• Analogous structures are a result of convergent
  evolution
• shared ancestry stabilising selection divergent
  evolution
• Answer
• Proximal end of the ?lament of stamen is attached
  to the connective
• placenta thalamus anther
• Answer
• Which of the following is not required for any of
  the techniques of DNA ?ngerprinting available at
  present? Zinc ?nger analysis

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Biology NEET 2016
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• Polymerase chain reaction
• Answer
• Select the incorrect statement
• LH and FSH triggers ovulation in ovary
• LH and FSH decrease gradually during the
  follicular phase LH triggers secretion of
  androgens from the Leydig cells
• FSH stimulates the Sertoli cells which helps in
  spermiogenesis Answer
• Joint Forest management Concept was introduced in
  India during 1970s
• 1980s
• 1990s
• 1960s
• Answer
• Asthma may be attributed to
• allergic reaction of the mast cells in the lungs
  in?ammation of the trachea
• accumulation of ?uid in the lungs bacterial
  infection of the lungs
• Answer
• Pick out the correct statement.
• Haemophilia is a sex-linked recessive disease

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• hydrogen bonds
• Answer
• The coconut water from tender coconut represents
  ?eshy mesocarp
• free-nuclear proembryo free-nuclear endosperm
  endocarp
• Answer
• Which of the following is not a feature of the
  plasmids? Circular structure
• Transferable Single stranded
• Independent replication Answer
• Which is the National Aquatic Animal of India?
  River dolphin
• Blue whale Sea-horse Gangetic shark
• Answer
• Which of the following is the most important
  cause of animals and plants being driven to
  extinction? Alien species invasion
• Habitat loss and fragmentation Co-extinctions
• Over-exploitation Answer
• Which of the following approaches does not give
  the de?ned action of contraceptive?

Increase phagocytosis of sperms, suppress sperm
motility and fertilising capacity of sperms.
Intra-uterine devices
Prevent/retard entry of sperms, prevent
ovulation and fertilisation
Hormonal contraceptives
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Biology NEET 2016
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Vasectomy Prevents
spermatogenesis

• Barrier methods Prevent fertilisation
• Answer
• In a test cross involving F1 dihybrid ?ies, more
  parental-type o?spring were produced that the
  recombinant type o?spring. This indicates
• chromosomes failed to separate during meiosis
• the two genes are linked and present on the same
  chromosome both of the characters are controlled
  by more than one gene the two genes are located
  on two di?erent chromosomes
• Answer
• Match the terms in Column I with their
  description in Column II and choose the correct
  option.

Column I
Column II
1. Many genes governs a single character
A. Dominance
2. In a heterozygous organism, only one allele
expresses itself
B. Codominance
3. In a heterozygous organism both alleles
express themselves fully
C. Pleiotropy
D. Polygenic inheritance
4. A single gene in?uences many characters
A
B
C
D
2
3
4
1
A
B
C
D
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4 A 1 B 2 C 3 D
4 3 1 2
A B C D
2 1 4 3

• Answer
• Whic of the following statements is not correct?
• Insects that consume pollen or nectar without
  bringing about pollination are called pollen
  nectar robbers
• Pollen germination and pollen tube growth are
  regulated by chemical components of pollen
  interacting with those of the pistil
• Some reptiles have also been reported as
  pollinators in some plant species
• Pollen grains of many species can germinate on
  the stigma of a ?ower, but only one pollen tube
  of the same species grows into the style
• Answer
• In higher vertebrates, the immune system can
  distinguish self-cells and non-self. If this
  property is lost due to genetic abnormality and
  it attacks self-cells, then it leads to
• graft rejection
• auto-immune disease active immunity allergic
  response
• Answer
• Which of the following structures is homologous
  to the wing of a bird? Wing of a moth
• Hind limb of a rabbit Flipper of whale Dorsal
  ?n of a shark
• Answer
• Seed formation without fertilisation in ?owering
  plants involves the process of budding

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Biology NEET 2016
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• Somatic hybridisation
• Apomixis Sporulation
• Answer
• Name the chronic respiratory disorder caused by
  cigarette smoking asthma
• respiratoty disease respiratory alkalosis
  emphysema
• Answer
• In a context of amniocentesis, which of the
  following statement is incorrect? It is used for
  prenatal sex determination
• It can be used for detection of down syndrome It
  can be used for detection of cleft palate
• It is usually done when a woman id between 14-16
  weeks pregnant Answer
• Antivenom injection contains preformed antibodies
  while polio drops that are administered into the
  body contain
• harvested antibodies gamma globulin attenuated
  pathogens activated pathogens
• Answer
• The Taq polymerase enzyme is obtained from
  Thiobacillus ferroxidans
• Bacillus subtilis Pseudomonas subtilis Thermus
  aquaticus
• Answer
• Which of the following most appropriately
  describes haemophilia? X-linked recessive gene
  disorder
• Chromosomal disorder Dominant gene disorder
  Recessive gene disorder
• Answer

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• Which part of the tobacco plant is infected by
  Meloidogyne incognitia?
• Leaf Stem Root Flower
• Answer
• Which of the following statements is not true for
  cancer cells in relation to mutations? Mutations
  destroy telomerase inhibitor
• Mutations inactivate the cell control Mutations
  inhibit production of telomerase
• Mutations in proto-oncogenes accelerate the cell
  cycle Answer
• Fertilisation in humans is practically feasible
  only if
• the ovum and sperms are transported
  simultaneously to ampullary -isthmic junction of
  the fallopian tube
• the ovum and sperms are transported
  simultaneously to ampullary -isthmic junction of
  the cervix the sperm are transported into cervix
  within 48 hrs of releases of ovum in uterus
• the sperms are transported into the vagina just
  after the release of the ovum in the fallopian
  tube Answer
• Which of the following is the starter codon? UGA
• UAA UAG AUG
• Answer
• A river with an in?ow of domestic sewage-rich in
  organic waste may result in increased population
  of aquatic food web organism
• an increased production of ?sh due to
  biodegradable nutrients death of ?sh due to lack
  of oxygen
• drying of the river very soon due to algal bloom
  Answer
• A system of rotating crops with legume or grass
  pasture to improve soil structure and fertility
  is called contour farming
• strip farming shifting agriculture

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• ley farming
• Answer
• Following are the two statements regarding the
  origin of life
• The earliest organisms that appeared on the earth
  were non-green and presumably anaerobes.
• The ?rst autotrophic organisms were the
  chemoautotrophs that never released oxygen. Of
  the above statement which one of the following
  options is correct?
• II is correct but I is false Both I and II are
  correct Both I and II are false
• I is correct but II is false Answer
• 90. Gause's principle of competitive exclusion
  states that
• Competition for the same resources excludes
  species having di?erent food preferences No two
  species can occupy the same niche inde?nitely for
  the same limiting resources Larger organisms
  exclude smaller ones through competition
• More abundant species will exclude the less
  abundant species through competition Answer

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