Final answer:
The term for a man pointed to as the father of a child before paternity is established is the 'Alleged father'. Paternity is typically determined by comparing the child's DNA markers with those of the mother and the alleged father to confirm a biological link.
Step-by-step explanation:
The correct option : b
An alleged father is a term used in legal and social contexts to refer to a man who has been named as the possible biological parent of a child, but for whom there is yet no definitive proof. This is different from a biological father, who is the male from whom the child has inherited his or her genetic material. Additionally, it is distinct from a custodial father, which refers to the man who has legal custody of the child, regardless of whether he is the biological parent.
To establish a reliable genetic link between an alleged father and a child using DNA fingerprinting, the child's genetic markers must match those of both the mother and the alleged father. Only when these markers are compared and found to be consistent can the term biological father be used definitively. This process entails analyzing specific sequences in the DNA that are known to be inherited from parents to their offspring.