Medical professionals wear lead aprons to protect them self’s from x rays because prolonged or repeated exposure can cause mutations in dna which can lead to

Which best explains how this maneuver unblock a person's airway?

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna