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  • Enumerate the differences between asexual and sexual reproduction Describe the types of asexual reproduction exhibited by unicellular organisms

Enumerate the differences between asexual and sexual reproduction. Describe the types of asexual reproduction exhibited by unicellular organisms.

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Asexual Reproduction

Sexual Reproduction

Single parent is required

Two parents are required

Gametogenesis doesn’t happen

Gametogenesis happens

Meiosis does not happen

Meiosis takes place during gametogenesis

Offspring’s genotype is identical to the parent

Offspring’s genotype is different from both parents.

Simple organisms reproduce asexually

Complex organisms reproduce sexually

Types of Asexual reproduction:

  1. Binary fission: A unicellular organism divides into two daughter cells. Parent generation does not exist post binary fission. Ex - Amoeba
  2. Multiple fission: Nucleus of mother cell divides into daughter nuclei. A cyst develops around the mother cell, which ensures safety during unfavourable conditions. When favourable condition resumes, the cyst disintegrates, and daughter nuclei develop into new individuals. Ex – Plasmodium, Entamoeba
  3. Budding: Nucleus produces a daughter nucleus. This nucleus moves to a bud formed at one end of the cell. The bud then detaches from the mother cell to develop into a new individual. Ex – Yeast.

 

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