Agene for disease resistance in fir trees is transferred to pine trees using modern dna technology. how might this be economically to tree farmers?
a) abnormal pine tree growth would be eliminated.
b) erosion of topsoil would no longer be a concern.
c) pine trees would be safe from pine beetle attacks.
d) more pine trees would live to maturity, increasing lumber output.
eliminate

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?