Which of the following techniques can be used to separate a homogeneous mixture into its component parts? (3 points) O Apply pressure
O Sort by color
O Sort by size
O Use magnetism

Which one of the following is true of trnas? a) trnas are double-stranded. b) each trna binds a particular amino acid. c) there are four types of trna. d) trnas carry special sequences known as codons. e) all of the above