PROCEDURE • The students are divided into groups and the assessment of the various genetic traits are done , first individually and then among themselves. • The phenotype and the possible genotypes are recorded in the tabular column. • Based on the occurrence of the traits , the frequency of the dominant and recessive characters were discussed. TRAIT POSSIBLE ALLELES NO.
% MY PHENOTYPE MY GENOTYPE (DOMINANT OR RECESSIVE) Cleft chin Have cleft (C) No Cleft (c) Hair curl Curly (H) Straight (h) Tongue rolling Roller ( T) Non roller (t) Dimples Dimple (D) No dimples (d) Earlobes Free lobe (F) Attached (f) Interlocking fingers Left thumb on top (L) Right thumb on top (l) Handedness Right (R) Left (r) Widow’s peak Widow’s peak (W) Straight (w) Shape of the face Oval (O) Square (o) Finger mid- digital hair Hair (M) No hair (m)