K.C.S.E Biology Q & A - MODEL 2015PP2QN03
State two examples of discontinuous variation.
(ii) ABO blood group system/Rhesus factor;
(iii) Ability to roll tongue;
(iv) Free or attached earlobe;
(v) Presence/ absence of hair in the nose! on the ear pinna;
(vi) Finger prints; ability to taste PTC (phenythiocarbamide) PTV (phenylthio urea)
(vii) Winglength in prosophila;
(viii) Size of abdomen in drosophila;
(ix) Eye colour in prosophila;
(x) Smooth/wrinkled seed coats in pea plants;
(xi) Green/yellow seed coats/seed coat colour in pea plants;
(xii) Polymorphism/melanic and non melanic forms in moths.