Virus - Mock Test 1

Question 1

Spirogyra has a

A) Haplontic life cycle B) Hapolidiplontic life cycle C) Diplontic life cycle D) Diplohaplonitc life cycle

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Question 2

The sexual reproduction in which cells of two different spirogyra filaments conjugate is known as

A) Lateral conjugation B) Scalariform conjugation C) Parthenospory D) Azygospory

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Question 3

Sexual reproduction in Spirogyra is an advanced feature because it shows

A) Different sizes of motile sex organs B) same size of motile sex organs C) Morphologically different sex organs D) Physiologically differentiated sex organs

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Question 4

Pyrenoid is found in one of the following organs of Spriogyra

A) Nucleus B) Chloroplast C) Cytoplasm D) Cell wall

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Question 5

At the time of germination of zygospore in Spirogyra

A) All haploid nuclei are functional B) Only one haploid nucleus is functional C) Diploid nucleus does not divide D) Diploid nucleus divides mitotically

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Question 6

In which of the following plant archegonium is absent

A) Spirogyra B) Funaria C) Pteris D) Cycas

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Question 7

Spirogyra appear ladder like during

A) Lateral conjugation B) Direct lateral conjugation C) Scalariform conjugation D) Semidrying condition

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Question 8

Spirogyra is more advanced than Ulothrix because it has

A) Internal fertilization B) Multicellular thallus C) Absence of hold fast D) Heterothallic thallus

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Question 9

Cell wall of Spirogyra is

A) One layered B) Two layered C) Three layered D) Four layered

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Question 10

The outer cell wall of Spirogyra is made up of

A) Cellulose B) Pectin/Pectose C) Hemicellulose D) Protein

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