Seadless Table Grapes

Grapes are the fruit of the vine and consist in an infructescence (cluster composed of seed tops), comprising a number of berries (acinus or berry) of various colours, ranging from green to golden-yellow, red, bluish, purplish-black, borne on a complex structure of branches (stalks).
How to choose them: focus on the colour of the grapes: white grapes should be yellow-green, whilst red ones should have red to purplish shades and black grapes should be dark blue. The grapes should not come away easily from the bunch.