Sunlight - Coloured Or Colourless

In maize, coloured endosprem (C) is dominant over colourless (c) , and full endosperm (R) is dominant over shrunken (r). When a dihybrid of F_(1) generation was test crossed, it produced four phenotypes in the following percentage : Coloured full - 48 % Coloured shrunken - 5 % Coloured full - 7 % Colourless shrunken - 40 % From this data, what will be the distance between two non-allelic genes ?

Under normal conditions (uncatalysed) "X" - gal substance is in (A) Blue colour (B) Green colour (C) Red colour (D) Colourless

Ti (III) compounds are coloured while Ti (IV) compounds are colourless.

When zinc granules are added to copper sulphate solution, the blue coloured solution-turns colourless. Give reason