Reproduction
Reproduction: Reproduction is the biological process in which an individual gives rise to an offspring similar to itself.
Purpose of Reproduction:
1. Continuity of Species:
Reproduction maintains the continuity of species.
2. Population Organisation:
Reproduction maintains population of the young, adult and the aged persons.
3. Variations:
Reproduction introduces variations in the organisms. Useful variations are essential for adaptations and evolution.
4. Life:
Life exists on earth due to reproduction in organisms.
Basic Features of Reproduction:
All modes of reproduction have some common basic features.
These are as follows:
(i) Synthesis of RNA, proteins and other bio-chemicals.
(ii) Replication of DNA.
(iii) Cell division.
(iv) Growth of cells.
(v) Formation of reproductive units.
(vi) Formation of new individuals from reproductive units.
Types of Reproduction:
Based on whether there is one or two organisms taking part in the process of reproduction
- Asexual Reproduction
- Sexual Reproduction
Clone- Off springs which are produced by asexual reproduction and are exact copy of their parents.