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Biology - Questions and AnswersPage 157

1561.

Sexual reproduction is absent in
(a)Blue-green algae
(b)Green algae
(c)Brown algae
(d)Red algae
Comment
Answer is: A

1562.

Algin is obtained from
(a)Diatoms
(b)Red algae
(c)Chara
(d)Brown algae
Comment
Answer is: D

1563.

The virus which attacks E.coll is termed
(a)Cyanophage
(b)Mycophage
(c)Coliphage
(d)None of these
Comment
Answer is: C

1564.

Laminaria is an important source of
(a)Agar-agar
(b)Gelatin
(c)Iodine
(d)Antibiotic
Comment
Answer is: C

1565.

'Pond silk' is the common name of
(a)Chlamydomonas
(b)Anabaena
(c)Oscillatoria
(d)Spirogyra
Comment
Answer is: D

1566.

Pneumonia is caused by one of the following
(a)Bacteria
(b)Fungi
(c)Algae
(d)Viruses
Comment
Answer is: A

1567.

Cotton fibre is obtained from the
(a)Stem
(b)Root
(c)Leaf
(d)Fruit
Comment
Answer is: D

1568.

The largest producer of groundnut is
(a)India
(b)Sudan
(c)Brazil
(d)China
Comment
Answer is: A

1569.

India's largest mineral resource is
(a)Coal
(b)Uranium
(c)Gold
(d)Copper
Comment
Answer is: A

1570.

The gas evolved by leaves during photosynthesis is
(a)Hydrogen
(b)Nitrogen
(c)Chlorine
(d)Oxygen
Comment
Answer is: D

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