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Question

Which one of the following statements is not correct?
  1. In potato, banana and ginger the plantlets arise from the internode present in the modified stem.
  2. Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes.
  3. Offspring produced by the asexual reproduction are called clones.
  4. Microscopic, motile, asexual reproduction structures are called zoospores.

A
In potato, banana and ginger the plantlets arise from the internode present in the modified stem.
B
Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes.
C
Offspring produced by the asexual reproduction are called clones.
D
Microscopic, motile, asexual reproduction structures are called zoospores.
Solution
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Water hyacinth covers the whole surface of water bodies and causes other surface and underground plants to die due to lack of sunlight. The increased organic content causes microbes growth that consumes oxygen in the decomposition of organic matter causing fishes to die due to oxygen scarcity. Asexual reproduction does not include meiosis and syngamy and the progeny is genetically identical to the parent. i.e., clone. Zoospores are flagellated microscopic asexual bodies of algae. Statement A is incorrect as an axillary bud in these plants give rise to plantlet; not the internode.

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Similar Questions
Q1

Identify the incorrect statement.
(a) In asexual reproduction, the offspring produced are morphologically and genetically identical to the parent.
(b) Zoospores are sexual reproductive structures.
(c) In asexual reproduction, a single parent prodices offspring with or without the formation of gametes.
(d) Conidica are asexual structure in Penicillium.

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Q2
a) What are hermophrodites? Mention one example.
b) Offsprings of asexual reproduction are called clones. Why?
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Q3
Why can an offspring produced by asexual reproduction be called as a clone? Give reasons.
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Q4
Flagellated ,motile asexual reproductive structure are called

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Q5
Which of the following statement is correct.

Statement I: Asexual reproduction involves fusion of gametes.
Statement II: Asexually produced offspring are genetically identical.
Statement III: Asexual reproduction occurs in unfavorable condition only.
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