مفهوم الجين.. الوحدة الأساسية للوراثة في الكائنات الحية

The gene مفهوم الجين
A gene can be defined as a region of DNA that controls a hereditary characteristic.
It usually corresponds to a sequence used in the production of a specific protein or RNA. 
A gene carries biological information in a form that must be copied and transmitted from each cell to all its progeny.
This includes the entire functional unit: coding DNA sequences, non-coding regulatory DNA sequences, and introns.
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