Biology Today — December 2017

A B

(a) I, IV II, V

(b) II, III II, IV

(c) I, III II, V

(d) I, V III, II

46. Match column I with column II and III and select the correct
    option from codes given below.
    Column I Column II Column III

A. (i) Axile (p) Marigold

B. (ii) Parietal (q) Lemon

C. (iii) Free central (r) Primrose

D. (iv) Basal (s) Mustard

(a) A-(iv)-(p); B-(i)-(q); C-(iii)-(r); D-(ii)-(s)

(b) A-(iii)-(s); B-(i)-(r); C-(ii)-(p); D-(iv)-(q)

(c) A-(iv)-(q); B-(iii)-(s); C-(i)-(p); D-(ii)-(r)

(d) A-(iv)-(q); B-(i)-(r); C-(ii)-(s); D-(iii)-(p)

47. Refer to the given figure and select the correct option
    regarding A-C.

A B C

A B C

(a) Simple tunicated

bulb

Scaly bulb Compound

tunicated bulb

(b) Fleshy scales

represent leaves

Fleshy scales

represent

buds

Fleshy scales overlap

one another on

margin

(c) Covering sheath

is absent

Covered by

corky skin

Covered by a

membranous sheath

(d) Found in onion Found in lily Found in garlic

48. Following are some characteristics of a plant family.
    (i) Flower : Complete, bisexual, actinomorphic
    (ii) Calyx : Sepals 5, gamosepalous
    (iii) Corolla : Petals 5, gamopetalous

(iv) Androecium : Stamens five, polyandrous, epipetalous

(v) Gynoecium : Bicarpellary, syncarpous, superior ovary

Select the floral formula that corresponds to the above

mentioned family.

(a) ⊕+KC(1) + 4 (5) (5)AG 2

(b) (^) %+KC(5) 1 + 2 + (2) 1 + (4)AG 2
(c) ⊕+KC(5)(5)5(2)AG
(d) ⊕+KC5(5)(5)2AG

49. Refer to the given figure (A-D).

A B C D

Select the option which identifies type of stamens with its

correct example.

A B C D

(a)Inserted

stamens –

Solanum

nigrum

Exserted

stamens –

Acacia

Didynamous

stamens –

Ocimum

Tetradynamous

stamens –

Mustard

(b)Exserted

stamens –

Cassia

Antiphyllous

stamens –

Althaea

Epipetalous

stamens –

Citrus

Didynamous

stamens –

Cucurbita

(c)Tetradynamous

stamens –

Ocimum

Exserted

stamens –

Mustard

Inserted

stamens –

Datura

Didynamous

stamens –

Passiflora

(d)Exserted

stamens –

Datura

Inserted

stamens –

Allium cepa

Gynandrous

stamens –

Calotropis

Tetradynamous

stamens –

Ocimum

50. A floral diagram is a diagrammatic representation of
    transverse section of a floral bud. Which of the following
    aspects of a flower cannot be determined with the help of
    a floral diagram?
    (a) Number of the floral parts of each type
    (b) Cohesion and adhesion of one or more parts
    (c) Aestivation of the floral parts
    (d) Type of inflorescence to which it belongs
    ANSWER KEY


51. (c) 2. (b) 3. (c) 4. (d) 5. (a)


52. (b) 7. (c) 8. (a) 9. (c) 10. (d)


53. (c) 12. (c) 13. (d) 14. (c) 15. (b)


54. (a) 17. (b) 18. (c) 19. (c) 20. (d)


55. (a) 22. (a) 23. (c) 24. (a) 25. (c)


56. (b) 27. (d) 28. (c) 29. (d) 30. (a)


57. (c) 32. (b) 33. (d) 34. (d) 35. (a)


58. (a) 37. (c) 38. (d) 39. (b) 40. (c)


59. (b) 42. (c) 43. (d) 44. (d) 45. (b)


60. (a) 47. (b) 48. (c) 49. (a) 50. (d)
    