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1391.

Plasmids are used as vectors in gene transfer. They are present in
(a)Cells of all living organisms
(b)All viruses
(c)Certain viruses
(d)Certain bacteria
Comment
Answer is: D

1392.

Transgenic plants and animals can be produced through
(a)Bio-technology
(b)Microbiology
(c)Genetic engineering
(d)Cytology
Comment
Answer is: C

1393.

Guttation is a process in plants by which
(a)Carbon dioxide and oxygen are removed
(b)Carbon dioxide is removed
(c)Excess of water is removed as water drops
(d)Excess of water is removed as water vapour
Comment
Answer is: C

1394.

Opposite decussate phyllotaxy is seen in
(a)Calotropis
(b)Hibiscus rosa-sinensis
(c)Cassia
(d)Nymphae
Comment
Answer is: A

1395.

The natural system of classification was postulated by
(a)Engler and Prandti
(b)Bentham and Hooker
(c)Aristotle and Linnaeus
(d)Theophrastus and Aristotle
Comment
Answer is: B

1396.

In plant energy is produced during the process of
(a)Transpiration
(b)Respiration
(c)Photosyhthesis
(d)Water absorption
Comment
Answer is: B

1397.

In which of the following the pollen grains are liberated as clouds of yellow powder and also called "Sulphur shower" ?
(a)Fem
(b)Cycas
(c)Pinus
(d)Moss
Comment
Answer is: C

1398.

Ln Botany,the Latin names are used because
(a)Latin is a simple language
(b)It is easy to write
(c)In whole world there would be only one name for one plant
(d)Most of the names in other languages are not correct
Comment
Answer is: C

1399.

The flowers are variously coloured to
(a)Prepare food
(b)Store food
(c)Attract insects
(d)Receive sunlight
Comment
Answer is: C

1400.

Agar-Agar is derived from
(a)Gelidium
(b)Batrachospemum
(c)Chara
(d)Cladophora
Comment
Answer is: A

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