Which would have a bigger effect on an organism, an error during transcription or a point mutation?

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

How does a gymnosperm prevent itself from pollinating the same tree

What percentage of light hits earth's surface directly?