which of the following mutations would be most likely to have a harmful effect on an organism?(1 point) responses all mutations have a harmful effect on organisms all mutations have a harmful effect on organisms a substitution of a thymine for an adenine a substitution of a thymine for an adenine a deletion of 3 bases near the center of a gene a deletion of 3 bases near the center of a gene there is not enough information to know whether a mutation would be harmful'