How are the modes for reproduction different in unicellular and multicellular organisms?

AcademicBiologyNCERTClass 10

Unicellular organisms reproduce by asexual methods such as budding, binary, and multiple fission, while multicellular organisms reproduce through both the methods, asexual and sexual methods of reproduction.

Multicellular organisms like humans undergo reproduction through sexual methods, while multicellular organisms like plants can undergo reproduction through sexual methods as well as through the asexual vegetative method of reproduction.

The basic difference between the asexual and sexual methods of reproduction are:

Asexual ReproductionSexual Reproduction
In asexual reproduction, the offspring arises from a single type of parent.In sexual reproduction, the offspring arises from two different sexes of parents or involves two different types of gametes.
ExampleAmoeba, Hydra, Planaria, Spirogyra, etc.Example: Dog, Tiger, Human being, etc.

Sexual reproduction gives more viable variations than asexual variations because,

(i) Insignificant error while copying DNA

(ii) Random segregation between paternal and maternal chromosomes during gamete formation.

(iii) accumulations of variations during sexual reproduction over generations and selection.

(iv) due to the huge and wide diversity of nature.

Updated on 10-Oct-2022 13:19:08