Biology - Questions and Answers, General Study (GK)

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1591.

"Breathing roots" of mangrove plants are also called

(a)Coralloid roots

(b)Pnematophores

(c)Both (B) and (c)

(d)Respiratbry roots

Comment

Answer is: C

1592.

Hydroponics is

(a)Plant growth in mineral deficiency soil

(b)Submerged hydroponic plants

(c)Plant growth under lab condition

(d)Plant growth in liquid culture medium

Comment

Answer is: D

1593.

In angiosperms ovules develop into

(a)Fruits

(b)Seeds

(c)Endosperm

(d)Pericarp

Comment

Answer is: B

1594.

'Tikka' is disease is found in

(a)Groundnut

(b)Citrus

(c)Sugarcane

(d)Sorghum

Comment

Answer is: A

1595.

The unicellular algae used in space regulate oxygen supply is

(a)Chlamydomonas

(b)Anabaena

(c)Chlorella

(d)Spirogyra

Comment

Answer is: C

1596.

Who is the well known Indian paleobotanist ?

(a)Birbal Sahni

(b)P. Maheswari

(c)M.S. Swaminathan

(d)P. Maheswari

Comment

Answer is: A

1597.

Sharbati, Sonara, Kalyan Sona are the improved varieties of

(a)Rice

(b)Maize

(c)Wheat

(d)Barley

Comment

Answer is: C

1598.

An algae yielding single cell protein of economic importance is

(a)Chlamydomonas

(b)Spirulina

(c)Gleocapsa

(d)Cosmarium

Comment

Answer is: B

1599.

The process of transfer of desirable characters from one species to other is known as

(a)Introduction

(b)Selection

(c)Emasculation

(d)Hybridization

Comment

Answer is: D

1600.

Wide variety of plants are observed in this part of the world

(a)Tropical regions

(b)Temperate regions

(c)Near polar regions

(d)High altitudinal areas

Comment

Answer is: A

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Biology - Questions and AnswersPage 160

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