are usually true of most other organisms. For examining heredity and how different alleles affect traits in a population, a good model organism is one that
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Ans. A model organism is a species that has been studied extensively, typically because it has unique experimental benefits and is easy to sustain and to develop in a laboratory setting. Examples of such organisms are Fruit fly (Drosophila melanogaster), Yeast (Saccharomyces cerevisiae), Mouse (Mus musculus), Western clawed frog (Xenopus tropicalis), Nematode worm (Caenorhabditis elegans), etc.
These characteristics include:
Model organisms are non-human animals used by scientists to explain biochemical processes in the laboratory.
They are also easy to maintain and replicate in a laboratory setting.
They will take a crucial place in the evolutionary tree, which is useful to researchers in evolution.
The model organism has the ability to breed in large quantities and produce a large number of offsprings.
They have a very short generation period between birth and reproduction, so several generations can be followed simultaneously.
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