Which type of rna makes up the ribosomes that manufacture polypeptides

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

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?