1.Four children belonging to the same parents have the following blood groups A, B, AB and O. Hence, the genotypes of the two parents are …………
Ans: (3)One parent is heterozygous for ‘A’ and another parent is heterozygous for ‘B’
2.Mitotic stages are not observed in ……..
Ans: (2) E.coli
3.The types of ribosomes found in prokaryotic cell are …………
Ans: (4) 70 S
4.The name of Smt. Thimmakka is associated with the
Ans: (1) Planting and conservation of avenue trees
5.Dog distemper is a disease carried by a ……………
Ans: None of the option is correct as dog distemper is carried by air and infected body fluids
6.When a fresh water protozoan is placed in marine water, …………
Ans: (1) The contractile vacuole disappears
7.The 2005 Nobel Prize for Physiology / Medicine was awarded to Barry Marshall and Robin Warren of Australia for their discover of ……..
Ans: (2) Bacterium Helicobacter pylori causing peptic ulcer
8.The following is the diagram of T.S. of Anther. Identify the parts labeled A, B, C
Ans: (1) A = Connective, B = Endothecium, C = Pollen grain
9.Pick the mammal with true placenta
Ans: (4) Mongoose
10.Which one of the following is correct?
Ans: (2) Codons are present in m-RNA and anticodons in t-RNA
11.Casparian strips are present in the …………. of the root.
Ans: (4) Endodermis
12.How do you differentiate a frog from a toad?
Ans: (4) Frog has no parotid glands but toad has a pair of parotid glands
13.Column I contains larval stages and Column II contains the group to which it belongs. Match them correctly and choose the right answer.
Column – I Column – II
A Planula p Annelida
B Tornaria q Mollusca
C Trochophore r Arthropoda
D Bipinnaria s Chordata
E Glochidium t Echinodermata
u Coelenterata
Ans: (1) A = u, B = s, C = p, D = t, E = q
14.Read the following statements A and B.
A: Many organs of aquatic plants float in water.
B: Large air gaps are present in the collenchyma tissues of lotus leaf.
Select the correct answer.
Ans: (1) Statement A is correct and B is wrong
15.Arrange the following in the ascending order of Linnaean hierarchy
Ans: (4) Species – genus – family – order – class – phylum – kingdom
16.Animals which possess cleidoic eggs exhibit.
Ans: (3) Internal fertilization and external development
17.The diagram given below represents the histology of a striped muscle. Label the parts A, B, C, D, E and F.
Ans: (3) A – Light band, B – Sarcoplasm, C – Myofibril, D – Sarcolemma, E – Nucleus, F – Dark band
18.Populations are said to be allopatric when ………….
Ans: (1) They are physically isolated by natural barriers
19.The World Intellectual Property Day is observed on …………..
Ans: (3) April, 26th
20.Which one of the following is an example of chlorophyllous thallophyte?
Ans: (2) Spirogyra
21.Pinus belongs to the class ………
Ans: (3) Coniferopsida
22.With reference to enzymes, which one of the following statements is true?
Ans: (2) Holoenzyme = Apoenzyme + Coenzyme
23.Gametophyte is the dominant phase in the lifecycle of ……………
Ans: (4) Riccia
24.In a typical Mendelian cross which is a dihybrid cross, one parent is homozygous for both dominant traits and another parent is homozygous for both recessive traits. In the f2 generation, both parental combinations and recombinations appear. The phenotypic ratio of parental combinations to recombiantions is ……..
Ans: (1) 10: 6
25.A balanced diet does NOT include ……….
Ans: (2) Nucleic acids and enzymes
26.Match the types of the fruits listed in Column I, with the examples listed on Column II. Choose the answer which gives the correct combination of alphabets of the two columns.
Column – I Column – II
A Capsule p Paddy
B Berry q Mango
C Drupe r Sunflower
D Cypsela s Tomato
t Lady’s finger
Ans: (1) A = t, B = s, C = q, D = r
27.In genetic code, 61 codons code for 20 different types of amino acids. This is called
Ans: (3) Degeneracy
28.By the statement ‘survival of the fittest’, Darwin meant that ………..
Ans: (4) The most adaptable of the species to changes survives
29.Which one of the following plants is considered as lesser known species of food crops?
Ans: (1) Psophocarpus tetragonolobus
30.When 2 to 3 drops of Benedicts reagent are added to a urine sample and heated gently, it turns yellow. This colour change indicates that …………
Ans: (4) Urine contains 1% glucose
31.BT brinjal is an example of transgenic crops. In this, BT refers to
Ans: (4) Bacillus thuringiensis
32.Which one of the following is NOT an antitranspirant?
Ans: (2) BAP and (4) Low viscosity (this option does not give any meaning and therefore can not be an antitranspirant)
33.The brainstem is made up of
Ans: (2) Midbrain, pons, medulla oblongata
34.The loosely arranged nonchlorophyllous parenchyma cells present in lenticels are called
Ans: (1) Complementary cells
35.Column I contains terms and column II contains definitions. Match them correctly and choose the right answer.
Column I Column II
A Parturition p Attachment of zygote to endometrium
B Gestation q Release of egg from Graafian follicle
C Ovulation r Delivery of baby from uterus
D Implantation s Duration between pregnancy and birth
E Conception t Formation of zygote by fusion of the egg and sperm
u Stoppage of ovulation and menstruation
Ans: (4) A = r, B = s, C = q, D = p, E = t
36.CAM pathway is observed in
Ans: (1) Pineapple
37.The number of ATP produced when a molecule of glucose undergoes fermentation is
Ans: (3)2
38.Silk produced by Antheraea mylitta is also called
Ans: (2) Tassar silk
39.Which of the following hormones is a steroid?
Ans: (1) Estrogen
40.More men suffer from colour blindness than women because
Ans: (4) Men are hemizygous and one defective gene is enough to make them colour blind
41.Which one of the following theories on the origin of life is mostly accepted?
Ans: (4) Chemical origin
42.The rosette habit of cabbage can be changed by application of
Ans: (2) GA
43.Effective filtration pressure in glomerulus is caused due to
Ans: (3) Afferent arteriole is slightly larger than efferent arteriole.
44.Banana bunchytop virus is transmitted through
Ans: (1) Pentalonia nigronervosa
45.In a tissue culture media, the resource of the phytohormone is
Ans: (4) Coconut milk
46.With reference to the pituitary, which of the following statements is true?
Ans: (3) Neurohypophysis collects and stores vasopressin and oxytocin
47.Column I contains terms and column II contains their meanings. Match them properly and choose the right answer.
Column I Column II
A Glycogenesis p Conversion of glycogen to glucose
B Glycosuria q Conversion of glycose to glycogen
C Glyconeogenesis r Excretion of glucose in urine
D Glycogenolysis s Conversion of noncarbohydrate sources to glucose
t Conversion of glucose to starch
Ans: (2) A = q, B = r, C = s, D = p
48.The term genetic RNA refers to
Ans: (1) Genetic material of RNA viruses
49.As per the guidelines of the Indian Red Cross society, which of the following persons is recommended for blood donation?
Ans: (3) Healthy women but unwed and below the age of 35 AND
(4) Persons who are immunized with live vaccines (4 weeks after being immunized with live vaccine, a person can donate blood)
50.In a typical heart, if EDV is 120 ml of blood and ESV is 50 ml of blood, the stroke volume (SV) is
Ans: (1) 120 – 50 = 70 ml
51.The term, ‘southern blotting’ refers to
Ans: (3) Transfer of DNA fragments from electrophoresis gel into nitrocellulose sheet
52.In some chordates, the notochord is modified as the vertebral column. Such animals are called vertebrates. Which of the following statements make sense?
Ans: (3) All vertebrates are chordates but all chordates are not vertebrates
53.A clone is
Ans: (1) A group of genetically similar organisms produced through asexual reproduction.
54.The space between the plasma membrane and the cell wall of a plasmolyzed cell surrounded by a hypertonic solution is occupied by the
Ans: (3) Hypertonic solution
55.When the blood contains a high percentage of CO2 and a very low percentage of O2, the breathing stops and the person becomes unconscious. This condition is known as
Ans: (2) Asphyxia
56.Which one of the following is not related to guttation?
Ans: (4) Guttation is of universal occurrence
57.The force responsible for upward conduction of water against gravity comes from
Ans: (1) Transpiration
58.Column I contains names of the sphincter muscles of the alimentary canal and column II contains their locations. Match them properly and choose the correct answer.
Column I Column II
A Sphincter of ani internus p opening of hepatopancreatic duct into duodenum
B Cardiac sphincter q between duodenum and posterior stomach
C Sphincter of oddi r guarding the terminal part of alimentary canal
D Ileocaecal sphincter s between oesaphagus and anterior stomach
E Pyloric sphincter t Between small intestine and bowel
Ans: (3) A = r, B = s, C = p, D = t, E = q
59.Which one of the following reactions is an example of oxidative decarboxylation?
Ans: (3) Conversion of pyruvate to acetyl CoA
60.Chemiosmosis hypothesis given by Peter Mitchel proposes the mechanism of
Ans: (2) Synthesis of ATP
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