with our technique it has been possible to observe only one type of hb in sheep ( this hb migrates towards the anode with the same speed of goats ' hbb ) while four types in goats , two formed by a single band and the other two constituted by two associated bands , respectively indicated as hba , hbb , hbab and hb ( ab ) 1 .
C0019046
hb
C0019016
hba