what is variation? explain about continuous and discontinuous variation.
Answers
The differences in characteristics between individuals of the same species is called variation.
Explanation:
CONTINUOUS VARIATION:
1)These refer to variations in traits that have continuous range of phenotypes which are difficult to classify into specific categories.
2)These are controlled by a large number of genes.
Example:Weight
Discontinuous Variation;
1)These refer to variations in the traits that have discontinuous range of phenotypes that can be classified easily.
2)These are controlled by a single or small number of genes.
Example:Blood group
Variation is defined as the difference in the characters or the traits among the individuals of a particular species...
The process of reproduction introduces favourable variations in the offsprings of a particular species. These variations may enable some of the organisms to survive even in extreme conditions of temperature, climate, etc., While all others of that species die. This will prevent the species from getting wiped out of the Earth. Thus, reproduction help in providing stability to populations of species,
through the introduction of favourable variations...
Reproduction involves the copying of nucleic acids. Variations are introduced in the offsprings, as the DNA copies generated will be similar, but not identical to the original, and to each other. No biochemical process is absolutely reliable. Some of the changes may be so drastic that the new DNA copy may not be able to work with the cell apparatus it inherits. As a result, the newborn cell will die. Thus, variation is beneficial to the species, but not necessarily for the individual...
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