Which of the following statements is false?

(1) Asexual reproduction is simpler than sexual reproduction

(2) Asexual reproduction occurs by fission, budding and fragmentation

(3) In most of the animals both asexual and sexual modes of reproduction are found

(4) Vegetative and sexual modes of reproduction are exhibited by the higher plants

Concept Questions :-

Introduction & Types of Reproduction
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The fastest method to obtain clones is through:

(1) Induced mutation

(2) Parasexual hybridization

(3) Parthenogenesis

(4) Vegetative reproduction

Concept Questions :-

Asexual Reproduction
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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

Concept Questions :-

Fertilisation Events
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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

Concept Questions :-

Introduction & Types of Reproduction
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Select the correct sequence from the following:

I. Juvenile phase → Senescent phase → Reproductive phase

II. Juvenile phase → Reproductive phase → Senescent phase

III. Reproductive phase → Juvenile phase → Senescent phase

IV. Vegetative phase → Reproductive phase → Senescent phase

(1) I and II

(2) I and IV

(3) III and IV

(4) II and IV

Concept Questions :-

Introduction & Types of Reproduction
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I. Bamboo species flower only once in their life time, generally after 50 -100 years, produce large number of fruits and die

II. In animals the juvenile phase is followed by physiological changes prior to active reproductive behaviour.

III. The reproductive phase is of same duration in all organisms.

IV. Juvenile phase is the period of growth between the birth of an individual till it reaches reproductive maturity.

V. In plants juvenile phase is also called vegetative phase.

Which of the following statements is false?

(1) I

(2) II

(3) III

(4) V

Concept Questions :-

Introduction & Types of Reproduction
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Many mammals, especially in natural, wild conditions are:

(1) Continuous breeders

(2) Seasonal breeders

(3) Both continuous and seasonal breeders

(4) Very much disease sensitive

Concept Questions :-

Introduction & Types of Reproduction
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Which of the following regulates the reproductive processes and the associated behavioural expressions of organisms?

(1) Hormones

(2) Environmental factors

(3) Abiotic components

(4) Interaction between hormones and environmental factors

Concept Questions :-

Introduction & Types of Reproduction
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A

B

C

Identify gametes (A, B and C) respectively:

(1) Heterogametes, isogametes, Homogametes

(2) Isogametes, homogametes, heterogametes

(3) Homogametes, isogametes, heterogametes

(4) Homo / Isogametes, heterogametes, heterogametes

Concept Questions :-

Pre Fertilization Events
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Meiosis:

(1) Does not take place in organisms showing asexual reproduction only

(2) Takes place in some sexually reproducing haploid organism

(3) Takes place in sexually reproducing diploid organism

(4) All of the above are correct

Concept Questions :-

Pre Fertilization Events
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