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Question

How can organisms reproduce?


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Solution

Reproduction:

  1. It is the process of production of a new offspring by an organism with the motion of transferring genetic material.
  2. Reproduction is an essential process for the survival of a species as it prevents the extinction of a species.
  3. Reproduction is meant to be the main purpose of an organism's life, as it plays the role of keeping the species alive.
  4. There are two modes of reproduction, i.e., sexual reproduction and asexual reproduction.

A. Sexual reproduction:

  1. Sexual reproduction involves the fertilization of a male and female gamete from two parents to produce offspring.
  2. Sexual reproduction helps to create genetic diversity as it involves two separate individuals.
  3. The fertilization of male and female gametes produces a zygote.
  4. The zygote matures and differentiates to form a fetus.
  5. The male and female gametes are haploid (single pair of chromosomes) whereas the zygote is diploid (two pairs of chromosomes as parents).
  6. The offspring produced from sexual reproduction is not a clone but similar.

B. Asexual reproduction:

  1. Asexual reproduction involves a single parent producing genetically similar offspring.
  2. Asexual reproduction produces identical offspring as it doesn't require gametes.
  3. There are different types of asexual reproduction.
  4. Binary fission involves the production of a new organism from the parent's body, where the parent cell divides into a new daughter cell.
  5. Fragmentation is the type of sexual reproduction where a new individual is developed from the segment of a parent.
  6. Budding is the process of production of a new individual from the bud that develops on the parent.
  7. Vegetative propagation is the process where a new plant is developed from any vegetative part of the plant, such as stem or leave, etc.
  8. Whereas spore formation is the process of asexual reproduction where the parent body in the sporophytic stage produces a spore, which upon the availability of appropriate develops into a new organism.

Hence, these are the methods by which organisms reproduce.


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