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Question

Asexual reproduction where the cell duplicates its genetic material.


A

Binary

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B

Budding

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C

Fragmentation

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D

Vegetative propagation

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Solution

The correct option is A

Binary


The correct answer is option (A)

Explanation of the correct option:

  1. Asexual reproduction is defined as the type of reproduction that occurs without the fusion of gametes.
  2. Binary fission is the process by which two daughter cells of roughly equal size are formed by the splitting of the parent cell.
  3. It is commonly seen in unicellular organisms like bacteria and algae.
  4. First, the DNA of the parent cell gets replicated and splits into two.
  5. The daughter cells are then formed from the parent cell by the appearance of the constriction in the middle.

Explanation of the incorrect options:

Option (B):

  1. Budding is defined as a type of asexual reproduction in which a small part of the parent plant grows into an outgrowth known as the ‘bud’.
  2. After growing in size, the bud detaches from the parent plant and gives rise to a new plant.

Option (C):

  1. Fragmentation is defined as the type of asexual reproduction in which the breaking of the parent organism takes place to give rise to the new plants.
  2. Filamentous green alga Spirogyra, reproduces by this method and spreads over large areas of the pond over a short period of time.

Option (D):

  1. Vegetative propagation is the process of asexual reproduction by which new plants are produced from the vegetative parts of the plants.
  2. The vegetative parts of the plants include stems, leaves, roots, etc.

Final answer: Asexual reproduction where the cell duplicates its genetic material is binary fission.


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