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Earn 100
Which of the following protozoan shows hologamy?
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Important Questions on Reproduction in Organisms
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A) Meiosis has to occur if a diploid body has to produce gametes
B) In Cladophora it is not possible to categorise the male and female gametes
C) Organisms exhibiting external fertilization show greater synchrony between sexes
D) In Wolffia isogametes can be seen
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Reason (R): Zygote is the product of two gametes and producer of next generation
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| Column – I | Column – II | ||
| a. | Proliferative Phase | i. | Breakdown of an endometrial lining. |
| b. | Secretory Phase | ii. | Follicular Phase |
| c. | Menstruation | iii. | Luteal Phase |
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Match the following:
| List - I | List - II | ||
| Isogamy | Vorticella | ||
| Anisogamy | Plasmodium | ||
| Hologamy | Monocystis | ||
| Conjugation | Amoeba | ||
| Trichonympha |
The correct match is
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(i) During favourable conditions Paramecium stops feeding after attaining its maximum growth.
(ii) At first the micronucleus divides by amitosis and the macronucleus divides into two daughter nuclei by mitosis.
(iii) The proter receives the anterior contractile vacuole, cytopharynx and cytostome from its parent individuals.
(iv) Before karyokinesis a transverse constriction appears in the middle of the body.
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a. All annuals
b. Few biennials
c. All biennials
d. Few perennials
e. Perennials mostly
f. Monocarpic plants
Find correct option w.r.t. plants showing clear-cut vegetative, reproductive and senescent phases.
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