CBSENEETClass 12
What is a gene?
Answer
A gene is a segment of DNA on a chromosome that carries the information for a particular trait or protein.
The working
Definition
A gene is the functional unit of heredity, a specific sequence of DNA that codes for a protein or characteristic.
Location
Genes are located at fixed positions called loci on chromosomes present in the nucleus.
Function
Genes control inherited traits such as eye colour and height by directing protein synthesis.
Alleles
A gene may exist in alternative forms called alleles, one inherited from each parent.
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