Human embryo clones could save lives

1.	a) Why is cloning similar to asexual reproduction?
 	b) Why can identical twins be considered clones?
 	c) Why would the insertion of a sperm nucleus into a denucleated egg not 		produce a clone of the donor father?

2.	a) In which circumstances would it be ethical for a couple or an individual to 	have a human clone produced?
	b) Is the 14 days limit reasonable?
	c) In the future could there be justification for allowing human clones to 		develop to maturity?