Biology - Questions and Answers, General Study (GK)

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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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Biology - Questions and AnswersPage 140

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