<span>Map Distance can be
defined as the expression of the probability that crossing over will occur
between two genes (loci) and it is measured as a Centimorgan (cM).</span>
<span>1 Centimorgan or 1 map unit is equivalent to 1% crossing
over. So if recombinant frequency between genes Dand B is 32%, the distance
between them is 32 map units or 32 cM.</span>
Uridine diphosphate glucose (UDP) is a nucleotide sugar involved in galactose metabolism. In this reaction, the galactose 1-phosphate uridylyltransferase (GALT) enzyme transfers a phosphate group from UDP-glucose to galactose 1-phosphate in order to convert galactose into glucose
