Structure and functions of mRNA

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Genes occur in DNA as a sequence of bases 

The particular base sequence equivalent to a gene is sometimes called a cistron

A gene is for a particular characteristic, such as flower colour, occupies a specific position along the length of a DNA strand called locus 

Different forms of the same gene are called alleles (alternative form)

When expressed (interpreted), alleles such as those for purple flowers and white flowers have a different…

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