What is true in the given figure?

1. The plant concerned is Chara and A is Oogonium and B is Antheridium

2. The plant concerned is Chara and B is Oogonium and A is Antheridium

3. The plant concerned is Marchantia and A is Oogonium and b is Antheridium

4. The plant concerned is Marchantia and B is Oogonium

Subtopic:  Artificial |
 83%
From NCERT
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Product of sexual reproduction generally generates

(1) longer viability of seeds

(2) prolonged dormancy

(3) new genetic combination leading to variation

(4) large biomass

Subtopic:  Sexual Reproduction |
 95%
From NCERT
NEET - 2013
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Monoecious plant of Chara shows occurrence of

(1) antheridiophore and archegoniophore on the same plant

(2) stamen and carpel on the same plant

(3) upper antheirdium and lower oogonium on the same plant

(4) upper oogonium and lower antheridium on the same plant

Subtopic:  Events during Sexual reproduction |
 71%
From NCERT
NEET - 2013
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Life span of parrot is 

(1) 140 years

(2) 60 years

(3) 80 years

(4) 40 years

Subtopic:  Introduction |
 91%
From NCERT
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No individual is immortal except:

(1) Single celled organisms

(2) Green plants

(3) Sponges

(4) Drones

Subtopic:  Asexual Reproduction |
 93%
From NCERT
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Which of the following is a false statement?

(1) All organisms have evolved similar mechanism to multiply and produce offsprings

(2) Asexual reproduction is uniparental

(3) Sexual reproduction is biparental

(4) In asexual reproduction no fertilization occurs

Subtopic:  Reproduction |
 79%
From NCERT
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Individuals of a clone:

(1) Are genetically similar but morphologically different

(2) Are morphologically similar but genetically different

(3) Are morphologically and genetically similar

(4) Are genetically and phenotypically different

Subtopic:  Asexual Reproduction |
 92%
From NCERT
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Which of the following is not vegetative propagule?

(1) Rhizome and sucker

(2) Tuber and offset

(3) Bulbil (e.g. in Agave), leaf buds, bulb

(4) Antherozoid

Subtopic:  Asexual Reproduction |
 95%
From NCERT
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Which of the following is false about internal fertilization?

I. Male gamete is motile

II. Male gametes are non-motile

III. Male gametes are produced in large number

IV. Male gametes are produced in small number

V. There is a significant reduction in the number of eggs produce

VI. In seeded plants non-motile male gametes are carried to female gamete by pollen tubes

(1) I, III, V, VI

(2) III, IV

(3) II, IV

(4) V, VI

Subtopic:  Events during Sexual reproduction |
 79%
From NCERT
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Select the-correct sequence from the following:

(1) Gametogenesis → Syngamy → Zygote → Embryogenesis

(2) Gametogenesis → Syngamy → Embryogenesis → Zygote

(3) Zygote → Embryogenesis → Gametogenesis

(4) Syngamy → Gametogenesis → Zygote → Embryogenesis

Subtopic:  Events during Sexual reproduction |
 86%
From NCERT
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