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Plants such as banana, orange, rose and ...

Plants such as banana, orange, rose and Jasmine that have lost the capacity to produce seeds can reproduce by vegetative propagation.

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When plants lose the capacity of seed formation then how does reproduction occur in them ? a.By spore formation b.By vegetative propagation c.By fission d.By regeneration

To study the vegetative propagation in potato. Apparatus : Tray, cotton Material : Potato Procedure : rarr Take potato tuber and observe its surface. rarr Observe the pits on its surface and bud present in the pit. rarr Make circle around them with the help of marker. rarr Cut the potato into small pieces in such a way that, some of them possess bud. rarr Now put wet cotton in the tray and put the potato pieces on it. rarr Water for some days in tray, so that cotton remains wet. rarr Observe the changes that occur in the potato piece. Which other plants except potato produce buds for vegetative propagation ?

To show vegetative propagation by stem cuttings. Materials : Money-plant (pothos) Procedure: rarr Select a money-plant. Cut some pieces which contain at least one node of leaf. rarr Cut out some other portions between two leaves. rarr Dip one end of all the pieces in water. rarr Observe over the next few days. Can you give some other example to show vegetative propagation by stem cuttings ?

Rose plants produce large, attractive bisexual flowers but they seldom produce fruits. On the other hand a tomato plant produces plenty of fruits though they have small flowers. Analyse the reasons for failure of fruit formation in rose.

An accelration produces a narrow beam of protons, each having an initial speed of v_(0) . The beam is directed towards an initially uncharges distant metal sphere of radius R and centered at point O. The initial path of the beam is parallel to the axis of the sphere at a distance of (R//2) from the axis, as indicated in the diagram. The protons in the beam that collide with the sphere will cause it to becomes charged. The subsequentpotential field at the accelerator due to the sphere can be neglected. The angular momentum of a particle is defined in a similar way to the moment of a force. It is defined as the moment of its linear momentum, linear replacing the force. We may assume the angular momentum of a proton about point O to be conserved. Assume the mass of the proton as m_(P) and the charge on it as e. Given that the potential of the sphere increases with time and eventually reaches a constant velue. The total energy (E) of a proton in the beam travelling with seed v at a distance of r (r ge R) from point O. Assuming that the sphere has acquired an electrostatic charge Q is

Vegetative propagation is seen in which plants ? Flowering or non-flowering plant ? Artificial vegetative propagation is practised in which plants? Seed bearing or seedless plants ?

Which parts of plant produce new plant through vegetative propagation ? a.Root, stem and flower b.Stem, flower and fruit c.Stem, leaf and flower d.Root, stem and leaf

Name a plant seed having obligate association with the mycorrihiza means that can not germinate and establish without the pressence of mycorrhiza.

In which pair both the plants can be vegetatively propagated by leaf pieces ? (A) Bryophyllum and Kalanchoe (B) Chrysanthemum and Agave (C) Agave and Kalanchoe (D) Aspargus and bryophyllum

KUMAR PRAKASHAN-HOW DO ORGANISMS REPRODUCE?-OBJECTIVE QUESTIONS AND ANSWERS (State whether the following statements are true or false: )
  1. State True or False.Number of organisms increase rapidly through asexu...

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  2. Fragmentation is the simplest method of reproduction in unicellular an...

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  3. The information of protein synthesis is stored in DNA of a cell nucleu...

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  4. Variation is useful for the survival of species.

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  5. Budding is an asexual reproduction method observed only in animals.

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  6. Condom is a mechanical barrier.

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  7. In sexual reproduction, DNA content is doubled in zygote than the DNA ...

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  8. The pollen grains produced in stamen are male reproductive cells.

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  9. Secretion of the sex hormones starts at the puberty stage.

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  10. Fallopian tubes come out from the vas deferens.

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  11. In human, fertilisation occurs in vagina of female and embryo developm...

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  12. The ovaries contain thousands of immature eggs in newborn girl.

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  13. State True or False. Menstruation usually lasts for about two to eight...

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  14. State True or False.Prenatal sex determination is legal in our country...

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  15. The size of population is determined through birthrate and deathrate o...

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  16. Syphilis is a STD.

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  17. Copying of DNA is a part of cellular reproduction.

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  18. Plants such as banana, orange, rose and Jasmine that have lost the cap...

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  19. State True or FalseSelf-pollination is considered better than cross- p...

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  20. Reproduction by production of bud is a common in yeast, hydra and bryo...

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