Advantages and disadvantages of asexual reproduction in organisms
Advantages of Asexual Reproduction.
- More offsprings
Within a short period, more individuals can be produced from a single parent.
- Identical Offsprings
The individual organisms have the same genetic makeup as the parent. Good genetic traits are preserved.
- Less time and energy
There is no need for the parent to find a mate for reproduction. Additionally, no parental care is needed as the offsprings are well-developed individuals. There is no baby stage.
- Easy dispersal
Offsprings can be easily moved to other locations to start new colonies. No need for male and female movement.
Disadvantages of Asexual Reproduction.
- Less Resistant
Changes in environmental conditions can be catastrophic to the organisms as there are no variations in their genes. Diseases can easily wipe out the entire colony of that organism.
Advantages of Sexual Reproduction.
- Better resistance and adaptation
The offsprings from sexual reproduction have different genetic makeup from parents and siblings. This means the offsprings are able to withstand adverse environmental conditions and diseases.
There is variety in the offsprings because of reshuffling (mixing) of genes and this helps the new organisms in natural selection and evolution.
Disadvantages of Sexual Reproduction.
- Less common
The requirement of both male and female sexes makes sexual reproduction less common than asexual reproduction. It takes more time and energy for opposite sexes to find and compete for a chance to mate.
- Longer gestation periods
It usually takes a longer time for the offspring to develop and mature enough to be born. For example, elephants take 624 days for the baby to develop and be born.
Reading for this lesson included the following sources:
1. Planarian, Flatworm: https://www.biologycorner.com/worksheets/articles/planarian.html Accessed on 2o Sept 2017
2. A Study of Menadione-Induced Cytotoxicity Reduction in Yeast Cells by Selected Enzymes. http://nhsjs.com/2010/a-study-of-menadione-induced-cytotoxicity-reduction-in-yeast-cells-by-selected-enzymes/ Accessed on 21 Sept 2017
3. How animals reproduce. http://philschatz.com/biology-concepts-book/contents/m45547.html Accessed on 18 Sept 2017
4. Grafting and Budding Nursery Crop Plants. Ted Bilderback. Director, JC Raulston Arboretum and Cooperative Extension Nursery Specialist Horticultural Science. R. E. Bir. T. G. Ranney Publication date: June 30, 2014 https://content.ces.ncsu.edu/grafting-and-budding-nursery-crop-plants Accessed on 26 Sept 2017