Q37
1 markMCQSection B

In which of the following figures is budding not shown ?

How do Organisms Reproduce?
Modes of Reproduction used by Single Organisms

Options

(A)I
(B)II
(C)III
(D)IV
Official Answer

The correct option is C (III).

buddingbinary fissionAmoebaHydraYeast

Marking Scheme

  • 11 mark

Hint

Look for the diagram that shows equal division of a single cell (binary fission) rather than an unequal outgrowth (bud).

Quick Oral Answer

Budding is not shown in binary fission (like in Amoeba) because binary fission involves the splitting of a single cell into two equal halves, whereas budding involves an unequal division forming a small external outgrowth.

Analysis & Explanation

Budding is a form of asexual reproduction where a new organism develops from an outgrowth or bud due to cell division at one particular site (as seen in Hydra and Yeast).

  • Figures I, II, and IV typically depict stages of budding in yeast or Hydra (where a distinct localized outgrowth is visible).
  • Figure III represents binary fission (e.g., in Amoeba), where the parent cell splits symmetrically into two equal halves without forming any localized bud or outgrowth. Therefore, budding is not shown in Figure III.

Common Mistakes

  1. 1Misidentifying binary fission in Amoeba as a stage of budding.

Interesting Facts

While Hydra uses regenerative cells to bud and reproduce, it can also regenerate its entire body if cut into pieces, though regeneration is not its primary mode of reproduction.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2012?

This question carries 1 mark in the CBSE Class 10 Science 2012 examination.

Which chapter does this question come from in Science?

This question is from the chapter "How do Organisms Reproduce?" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Modes of Reproduction used by Single Organisms" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2012 paper?

This is a MCQ question from Section B in the CBSE Class 10 Science 2012 paper.