Important Question B. Pharma
1. In Bentham and hooker’s system of classification, the sub-class Polypetalae and gamopetalae have the cohorts in the ratio of
(a) 3 : 2
(b) 1 : 1
(c) 2 : 1
(d) 2 ; 3
Ans. (a)
2. In which of the following plants, pollen is released before the stigma becomes receptive in the same flower?
(a) Solanum
(b) Allium
(c) Colchicum
(d) Datura
Ans. (b)
3. Chromosome number in the endosperm cell of plant ‘A’ and in the root apical meristem cell of plant ‘B’ together equal the chromosome number in the shoot apical meristem cell of Apple. Plants A and B respectively are
(a) Rice, Maize
(b) Maize, Haplopappus
(c) Rice, Potato
(d) Rice, Haplopappus
Ans. (b)
4. There are 20% Adenines among the bases in a DNA fragment measuring 6.8 nm in length. The number of pentoses, nitrogen base pairs, phosphate groups and hydrogen bonds in this DNA fragment are respectively
(a) 40, 20, 40, 52
(b) 52, 20, 20, 40
(c) 40, 52, 40, 20
(d) 20, 40, 52, 40
Ans. (a)
5. Which one of the following characters is not found in transverse section of monocot stem?
(a) Starch sheath
(b) Sclerenchymatous bundle sheath
(c) Lysigenous cavity
(d) Sclerenchymatous hypodermis
Ans. (a)
6. A taxon is observed. Himigiri variety which is resistant to hill bunt disease belongs to this taxon. In this taxon, pollen grains lose viability within 30 minutes of their release from anthers. The taxon belongs to the order.
(a) Poales
(b) Sapindales
(c) Polemoniales
(d) Rosales
Ans. (a)
7. Identify the wrong combination:
(a) Marchantia – Pseudo-elaters
(b) Dryopteris – Rhizome
(c) Cycas – Coralloid roots
(d) Volvox – Colonial form
Ans. (a)
8. Trichodesmium erythrium which gives colour to red sea is a
(a) Brown alga
(b) Green alga
(c) Blue green alga
(d) Red alga
Ans. (c)
9. Identify the characters of mustard, chilli, cauliflower respectively
(a) Axile placentation, tricarpellary gynoecium, sessile flowers
(b) Inferior overy, zygomorphic flower, corymb
(c) Whorled phyllotaxy, unilocular ovary, production of flowers at the same node of the peduncle
(d) Hypogynous flower, unilocular ovary, corymb
Ans. (d)
10. Four plants (A, B, C, D) are observed. ‘A’ has cartilageous endocarp in the fruit and fleshy thalamus as chief edible part. ‘B’ has caryopsis fruit with endosperm as the chief edible part. In ‘C’, each carpel of apocarpous gynoecium develops into a fruitlet and its mesocarp and endocarp are the chief edible parts. ‘D’ has syconus fruit with edible fleshy peduncle. To which families A, B, C and D belong respectively?
(a) Rosaceae, Poaceae, Annonaceae, Moraceae
(b) Annonaceae, Rosaceae, Moraceae, Rutaceae
(c) Solanaceae, Cucurbitaceaem, Anacardiaceae, Moraceae
(d) Rutaceae, Anacardiaceae, Rosaceae, Fabaceae
Ans. (a)
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