I : Zoospores are the most common asexual reproductive structures in algae

II :Algae and fungi always require water for fertilization always.

1. Both I & II are correct and II is the correct explanation of I

2.Both I & II are correct but the II is not the correct explanation of I

3. I is a correct statement but II is not correct.

4. Both I & II are incorrect statements.

Subtopic:  Asexual Reproduction | Sexual Reproduction |
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Find out the incorrect option :-

1. Bulbil-Agave

2. Rhizome-Ginger

3. Corm-Onion

4. Tuber-Potato

 

Subtopic:  Asexual Reproduction |
 93%
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The whole plant can be developed vegetatively in Agave form a propagule like

1. Rhizome

2. Corm

3. Bulb

4. Bulbil

Subtopic:  Asexual Reproduction |
 94%
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Select incorrect statement with respect to life span.

a. It is the period from the reproductive phase to the senescent phase.

b. Life spans of organisms are not necessarily correlated with their sizes.

c. No individual is immortal, whether single-celled or multi-celled.

d. The life span of banana tree is 25 years.

1. a & d

2. a & b

3. a & c

4. c & d

Subtopic:  Introduction |
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From NCERT
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Identify the correct match 

Column l                     Column ll

1. Grasses   -             Runners

2. potato      -              Rhizome

3. Crocus    -              Tuber

4. Agave     -               Bulb

 

Subtopic:  Asexual Reproduction |
 61%
From NCERT
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Gametes are haploid. It signifies that

1. They cannot be formed without meiosis

2. They always have half the number of chromosomes than that of main plant body

3. Bryophytes produce them by mitosis

4. Bryophytes do not show meiosis since plant body is haploid 

Subtopic:  Events during Sexual reproduction |
From NCERT
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male and female flowers are present on same plant in all of these, except

1. Cucurbits

2. Coconuts

3. Maize

4. Date palm

Subtopic:  Events during Sexual reproduction |
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Algae and fungi resort to sexual reproduction because

1. It is more rapid form of propagation

2. Zygote as with its thick wall make them able to withstand unfavourable conditions

3. Formation of zygote is universal event

4. Every organism begins life as a single cell 

Subtopic:  Events during Sexual reproduction |
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Match correctly with respect to mode of propagation

1. Adventitious bud      -  Potato tuber

2. Offset                       -  Lotus

3. Seed                        -  Cereal

4. Rhizome                  -  Terror of Bengal

Subtopic:  Asexual Reproduction |
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Which of the following statement is correct?

1. Strobilanthus Kunthinan flowers once in 12 years

2. Formation of the diploid embryo is universal in all sexually reproducing organisms

3. In the majority of organisms, both male and female gametes are stationary

4. Sexual reproduction is an elaborate, complex and rapid process as compared to asexual reproduction

Subtopic:  Sexual Reproduction |
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