How might a mutation cause a beneficial change in a phenotype of an organism? (give an example)

The physical appearance of the biochemical characteristic of an organism as result of the interaction of phenotype; some mutation has the positive effect on the organism in which they occur.

Explanation:

They are called beneficial mutation. Phenotype of the organism lead to new development of proteins which help the organisms to adopt their own environment. Beneficial mutation are essential for evaluation to occur.

Phenotype stretch the DNA without any function; the mutations occur in a protein coating region, but it end up the process by not affecting sequence of the protein.

Example of phenotype are:

Observable characteristics including behaviour, biochemical properties; the phenotype benefits such as HIV resistance, lactose resistance.

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unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.