"To a biologist the question of when life begins for a human child is almost meaningless," Holdren argues. "To most biologists, an embryo (unborn child during the first two or three months of development) or a fetus is no more a complete human being than a blueprint is a building."That same specious argument could be made that an infant is "simply a blueprint" of an adult human being. Does that make them worthless as well?
To be intellectually honest, our DNA is the blueprint, once it combines in vivo it becomes a developing person. A fetus is no less physically developed compared to an adult than a baby is mentally to same.