Answer Posted / vijayasai
Gene is a general term that referes to a particular
character. For e.g., Hair colour is controlled by a gene.
However, there are various colours of hair are present.
e.g.,black hair and brown hair. These two versions of hair
colour are nothing but the alternate forms of a gene which
are called as ALLELES.The alleles of a same gene can differ
from each other by the presence of different nucleotides at
a spcific position. i.e. nuleotide polymorphism. Some times
the alleles can be either homozygous or heterozygous for a
given gene. Following mendelian genetics, one allele is
inherited from one of the parents.
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