1.
An example for symbiotic bacteria
2.
In which plant, the fruit is a drupe, seed coat is thin, embryo is inconspicuous and endosperm is edible?
3.
Somaclonal variation appears in plants:
5.
Which one of the following are intracellular obligate parasites?
6.
Pineapple fruit develops from:
7.
A sewage treatment process in which a part of decomposer bacteria present in the waste is recycled into the starting of the process is called:
8.
Which of following mineral-nutrients plays an important role in biological nitrogen fi xation?
9.
Which of the following is true?
10.
In C4 plants, the bundle sheath cells:
11.
Potato spindle tuber disease is caused by:
12.
In which of the following, all listed genera belong to the same class of algae?
13.
In root nodules of legumes, leg-haemoglobin is important because:
14.
Darwin judged the fi tness of an individual by:
15.
Etiolation in plants is caused when:
18.
The chief component of the middle lamella in plant cell is:
19.
Tonoplast is a membrane surrounding the:
20.
Polyploidy can be produced artificially by:
21.
Recombination is involved in the process of:
22.
A fi brous root system is excellent for:
23.
If a primary root continues to grow, the type of root system will be known as:
24.
A horizontal underground stem is a:
25.
If global warming continues, the organism which may face more severe threat is:
26.
One advantage of cleistogamy is:
27.
Jute fibres are obtained from the:
28.
A chromosome in which the centromere is situated close to its end so that one arm is very short and the other very long is:
29.
Resin and turpentine are products of:
30.
An inexhaustible non-conventional universal source of energy is:
31.
Which one of the following periods is largely associated with extinction of dinosaurs and the increase in flowering plants and reptiles?
32.
Which type of water is used by the plants?
33.
Electroporation involves:
34.
One of the following acts as secondary pollutant:
36.
The least porous soil among the following is a:
37.
In higher plants, the shape of the chloroplast is:
38.
Which of the following statements is false?
39.
A kingdom common to unicellular animals and plants is:
40.
Which of the following is a rootless aquatic plant, in which a portion of the leaf forms a tiny sac for trapping insects?
41.
Enzymes that catalyse inter-conversion of optical, geometrical or positional isomers are:
42.
According to abiogenesis life originate from:
43.
External fertilization occurs in majority of:
44.
The final stable community in ecological succession is:
45.
Which of the following combinations of characters is true for slime moulds?
46.
Which is an organic compound found in most cells?
47.
Taxonomic hierarchy refers to:
48.
Reproductive isolation between segments of a single population is termed:
49.
Steroid hormones easily pass through the plasma membrane by simple diffusion because they:
50.
Industrial melanism is an example of:
51.
The larva of Bombyx mori is known as:
52.
Which of the following is a viviparous fish?
53.
The cutaneous plexus and the papillary plexus consist of:
54.
The function of vagus nerve innervating the heart is to:
55.
The size of pupil is controlled by the:
56.
Largest single mass of lymphatic tissue in the body is:
57.
HIV is classified as a retrovirus because its genetic information is carried in:
58.
Vomiting centre is located in the:
60.
Skeletal muscles are controlled by:
62.
Erythropoiesis starts in:
63.
In an aquatic ecosystem, the trophic level equivalent to cows in grasslands is:
64.
Oxidative phosphorylation refers to:
65.
Down’s syndrome is due to:
66.
All flat worms differ from all round worms in having:
67.
Deserts, grasslands, forests and tundra are the examples of:
68.
Which of the following is a free living nitrogen fixing bacterium present in the soil?
69.
Aedes aegypti is a vector for:
70.
Inadequate protein intake leads to kwashiorkor. The subsequent edema is most closely related to inadequate synthesis of which protein?
71.
The “lock and key” model of enzyme action illustrates that a particular enzyme molecule:
72.
If the pituitary gland of an adult rat is surgically removed, which of the following endocrine glands will be less affected?
73.
If one litre of water is introduced in human blood, then:
74.
Beadle and Tatum showed that each kind of mutant bread mould they studied lacked a specific enzyme. Their experiments demonstrated that:
75.
mRNA directs the building of proteins through a sequence of:
76.
Carbon dioxide is called green-house gas because it is:
77.
The hormone that increases the blood calcium level and decreases its excretion by kidney is:
78.
Signaling between cells usually results in the activation of protein:
79.
Estrogen and testosterone are steroid hormones, and are most likely bind to:
80.
Which of the following is unique to mitosis and not a part of meiosis?
81.
Transplant between different species is
82.
The UN conference of Parties on climate change in the year 2016 was held at
83.
Uses of organisms to add essential materials to a degraded ecosystem
85.
Polytene chromosome first reported by
86.
What happens when sperm enters in secondary oocyte in humans
87.
The science of ageing is referred as
88.
The extent of which ion accumulation in guard cells determines the size of the stomatal opening
89.
Nodule formation in leguminous plant believed to be occur due to
(i) Cytokinin produced by invading bacteria
(ii) Auxin produced by plant cell.
(iii) Auxin produced by invading bacteria
(iv) Cytokinin produced by plant cell.
90.
Hydroxypyruvate in C-2 cycle formed in which cell orgenelle
91.
How many genes are found in Drosophila Melanogaster?
92.
Which enzyme is responsible for degrading cell wall?
93.
Enzyme found functional in lysosome is:
96.
Which part of brain control intellectual ability?
97.
The correct sequence of meanings of brain from outside to inside is:
98.
The sequence of ear ossicles from outside to inside is:
99.
Which of the following is balancing organ?
100.
Glenoid cavity is found in:
