1. Which of the following group show viviparous germination ?
Correct : A. Rhizophora and Avicinnia
2. Which of the following is found in high concentration in healthy leaf ?
Correct : C. Auxin
3. From the given below which is short-day plant ?
Correct : A. Paddy
4. Which of the following is long-day plant ?
Correct : A. Oat
5. Vernalization means..............
Correct : D. Speedy flowering at low temperature
6. Flowering due to low temperature is .........
Correct : B. Vernalization
7. If temporary light is made available for dark phase of long day plant, what is observed ?
Correct : A. Flowering will not occur
8. Which is an essential temperature for more production of wheat by noting effect of low temperature ?
Correct : C. °1to10 C
9. By which condition flowering take place in short day plant ?
Correct : A. Short day and long night
10. Which type of light is required in long day plants for flowering ?
Correct : B. More light than alloted period
11. Where is phytochrome pigment present ?
Correct : D. Phanerogams
12. Which physilogical reaction is essential for development leaftendril ?
Correct : C. Circumnutation
13. Photoperiodism is .........
Correct : C. Effect of length of day on flowering
14. Which hormone is essential in pineapple for inducing flowering, without season ?
Correct : D. NAA
15. Which of the following plant shows rotational movement ?
Correct : C. Hydrilla
16. Which of the following is example of amoeboid movement ?
Correct : B. Fungi
17. Which of the following option shows an examples of cilliary movement ?
Correct : B. Chlamydomonas
18. Which plant show movement from intense light to dim light ?
Correct : A. Volvox
19. Which of the following show movement by chemical ?
Correct : A. Male gametes of bryophytes and pteridophytes
20. Which of the following is an example of thermonasty ?
Correct : B. Crocus
21. In which structure thigmonasty is observed in simple form ?
Correct : D. Leaf tendril
22. Demonstration of cytoplasmic movement in living cell can be observed in ........
Correct : C. Leaf cells of tradescantia
23. Which factor increases in plant in absence of light ?
Correct : D. Length of internode increases, growth of plant in longitudinal axis.
24. Sensitivity of leaves in Mimosa, depends on which factor ?
Correct : D. Touch
25. Movement of cilia in Drocera, depends on which factor ?
Correct : C. Touch
26. Which are the labelled part A and B ?
Correct : C. Fruit and radicle
27. Which is the labelled part A and B given in the figure ?
Correct : A. Cotyledon and Hypocotyl
28. Which are the part labelled as A, B and C sequentially in the figure ?
Correct : B. Seed coat, Endosperm, plumule
29. Mention part A and B, labelled in the figure.
Correct : C. Hypocotyl, primary root
30. If cells obtain ability of cell division in certain circumstances, it is called .........
Correct : C. De-Deferentiation
31. In certain condition, dividing cell, loose their ability of cell division, it is called .......
Correct : D. Undifferentiation
32. What is A and B in the given figure ?
Correct : A. Senescence and death
33. Which organic chemicals are included in shoot with photoperiodism ? (AIIMS-1996)
Correct : D. Gibberrelin
34. Motor cells of leaves and grass, shows which type of movement ? (AIIMS-1996)
Correct : D. Osmotic movement
35. Which activity in plant is observed due to ethylene ?
Correct : B. Maturation of fruit
36. Which of the following type is improper for nastism ?
Correct : D. Phototropism
37. Which of the following is incorrect for tropism ?
Correct : D. Thigmotaxis
38. What is the direction of tropism ?
Correct : D. Directional
39. Which of the example is improper for tropic movement ?
Correct : D. Mimosa
40. With, what nutation is related ?
Correct : C. Autonomous curvature movement
41. Match the list :
Column I Column II
(P) Volvox (i) Chemotaxis
(Q) Mimosa (ii) Phototaxis
(R) Antherozoids of bryophytes (iii) Movement / tropism
(S) Leaf tendril (iv) Thigmotropism
Correct : C. (P-ii), (Q-iv), (R-i), (S-iii)
42. Match the list :
Column I Column II
(P) Plasmodium of slime mould (i) Ciliary movement
(Q) Chlamydomonas algae (ii) Circular movement
(R) protoplasm of tradenschantia leaf (iii) Rotational movement
(S) Protoplasm of hydrilla (iv) Amoeboid movement leaves
Correct : C. (P-iv), (Q-i), (R-ii), (S-iii)
43. Match the following :
Column I Column II
(P) Zoospore of volvox (i) Thermo taxis
(Q) Antherozoids of bryophytes and pteridophytes (ii) Thigmo taxis
(R) Diatoms (iii) Photo taxis
(S) Zoospores in oedogonium (iv) Chemo taxis
Correct : C. (P-iii), (Q-iv), (R-i), (S-ii)
44. Match the following :
column I Column II
(P) Opening of leaf blade (i) Epinasty
(Q) Closing of leaves (ii) Hyponasty
(R) Zigzag movement in apical bud (iii) Nutation
(S) Spiral and helical growth of tendrilar plants (iv) Circumnutation
(T) Pulsation in leaflets of indian telegraph plant (v) Variation
Correct : C. (P-v), (Q-i), (R-iv), (S-iii), (T-ii)
45. Match the list :
Column I Column II
(P) Phototropism (i) Water
(Q) Geotropism (ii) Gravitation
(R) Hydrotropism (iii) Light
(S) Thigmotropism (iv) Touch
Correct : B. (P-iii), (Q-ii), (R-i), (S-iv)
46. Match the list :_ans_key_Column I Column II
(P) Lotus and sunflower (i) Hydronasty
(Q) Crocus and tulip (ii) Thigmonasty
(R) Due to turgidity of leauses (iii) Thermonasty
(S) Mimosa (iv) Photonasty
48. In which type of dormancy, due to hardness of seed coats or integuments, embryo could not expand
during germination ?
Correct : B. Mechanical dormancy
49. Which type of dormancy is found when seed is impermeable to water or gaseous exchange ?
Correct : B. Mechanical dormancy
50. Which type of dormancy, inhibits embryo growth and germination in seed ?
Correct : B. Physiological dormancy
51. Which type of dormancy is found in seed causes physiology and external dormancy ?
Correct : A. Mixed dormancy
52. What is the type of dormancy in which embryo do not differentiate into various tissue at the time of
fruit maturation ?
Correct : C. External dormancy
53. During physiological and physical condition some changes observed in seed, is knows as ......
Correct : C. Combinational dormancy
54. Which type of dormancy is induced in seeds due to adverse condition and high temperature ?
Correct : D. Secondary dormancy
55. Genotype is
Correct : A. Genetic composition of many organisms.
56. Mendelism is genetics of
Correct : D. All the above
57. Which technique is used by Mendel for hybridization ?
Correct : A. Emasculation
58. Phenotypic ratio 3:1 proves
Correct : B. Segregation
59. What is the ratio of homozygous plants for both dominant characters in F2 of a Dilybrid cross ?
Correct : D. 9/16
60. Which of the following is significance of dominance ?
Correct : B. Harmful mutations are not expressed due to dominant gene
61. From a single ear of corn, a farmer planted 200 kernels which produced 140 tall & 40 short plants. The genotypes of these off springs are most likely.
Correct : A. TT ,tt
62. A useful process for determining whether an individual is homozygous or heterozygous is
Correct : B. self fertilization
63. Heterozygous tall plants were crossed with dwarf plants what will be the ratio of dwarf plants in the following progency ?
Correct : A. 50%
64. Genetic recombinations occur through
Correct : C. Meiosis & fertilization
65. Which of the following is the unit of inheritance ?
Correct : C. Gene
66. Allele is the
Correct : A. Alternate trait of gene pair
67. Types of phenotypes of F2 generation of dihybrid cross ?
Correct : A. 4
68. Cross XXYy xxYy yields Xx YY:XxYy :Xxyy:xxyy offspring in the ratio of
Correct : C. 1 : 1 : 1 : 1
69. Genes do not occur in pairs in
Correct : D. Gametes
70. Genotype - Phenotype concept was first produced by
Correct : A. Bateson
71. 1: 1: 1: 1 ratio shows
Correct : D. Dihybrid test cross
72. Test cross is
Correct : D. Tt tt
73. In a plant, gene "T" is responsible for tallness and its recessive allele "t" for dwarfness and "R" is reponsible for red colour flower and its recessive allele "r" of white flower colour. A tall and red flowered plant with genotype TtRr crossed with dwarf and red flowered ttRr. What is the percentage of dwarf - white flowered offspring of above cross ?
Correct : C. 12.5 %
74. In Mirabilis plant the appearance of the pink hybrid (Rr) between cross of a red (RR) and white (rr) flower parent indicates
Correct : C. Incomplete dominance
75. If there were only parental combinations in F2 of a dihybrid cross then Mendel might have discovered ?
Correct : A. Independent assortment
76. Medelian dihybrid and dihybrid with linkage are respectively related with how many chromosomes?
Correct : B. 2 pair & 1 pair
77. If distance between gene on chromosome in more , then gene shows :-
Correct : B. strong linkage
78. Which of the following conditions represent a case of co- dominant genes ?
Correct : D. Alleles, both of which interact to produce an independent effect in heterozygous condition.
79. A gene located an y - chromosome and therefore, transmitted from father to son is known as
Correct : A. Supplementary gene
80. In multiple allele system a gamete possesses
Correct : C. one allele
81. Blood grouping in humans is controlled by
Correct : B. 3 alleles in which IA and IB are dominant
82. Muliple alleles are present
Correct : C. at the same locus on homologous chromosome
83. what is called pleiotropism ?
Correct : A. Phenomenon of multiple effect of a simple gene
84. In a family, father has a blood group 'A' and mother has a blood group 'B', Children show 50 % probability for a blood group "AB" indicate that -
Correct : C. Either of parent is heterozygous
85. The longer the chromosome of an organism, the more genetic variability it gets from,
Correct : C. Crossing over
86. Which statement is incorrect about linkage ?
Correct : C. Knowledge of linkage helps the breeder to combine all desirable traits in a single variety.
87. Genetic balance theory for sex determination in Drosophila was proposed by
Correct : D. Mc. Chang
88. In Bonellia all larva are genetically and cytologically similar. In this worm mole individuals live inthe uterus of female. If a particular larva settle near proboscis of an adult female, it becomes a male individuals. Larva develops free in water it becomes.
Correct : B. Female individuals
89. F2 generation is produced as a result of
Correct : D. Crossing F1 individuals amongst them selves.
90. Segregation of genes take place during which phase of cell division ?
Correct : B. Anaphase
91. A couple has four daughters. The percentage probability of fifth child to be a Daughter is.
Correct : B. 50
92. In human being sex chromosomal complement is
Correct : A. XX - XY
93. Zea mays has 10 pairs of chromosomes . Linkage groups present in it are
Correct : B. 10
94. Crossing over during meiosis occurs between
Correct : B. Non sister chromatids
95. Incomplete linkage in Drosophila produces off springs with parental and non-parental combinations.State the percentage of non parental combination of Drosophila.
Correct : B. 17 %
96. What does the term recombination describe ?
Correct : A. Generation of non- parental gene combination
97. A cross between hybrid and a parent is known as
Correct : B. Back cross
98. Checkerboard method of calculations was developed by