TASK DEFINITION: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
PROBLEM: Question: It is a stop codon for translation: 
 Options:  <1> AUG. <2> UAU <3> UGA <4> UAC. <5> UGU

SOLUTION: 3

PROBLEM: Question: Which of the nucleophiles listed below has a greater reactivity to the bimolecular nucleophilic substitution reaction? 
 Options:  <1> Hydroxide. <2> I last. <3> Ammonia. <4> Water. <5> Acetic acid.

SOLUTION: 2

PROBLEM: Question: All of the following statements that describe restriction endonucleases are true EXCEPT: 
 Options:  <1> They do not provide single chain ends in complementary pieces of DNA. <2> They are limited by the methylation of the recognition sequences. <3> They recognize palidromic sequences. <4> They break both chains in the DNA duplex. <5> They are specific to short symmetric sequences.

SOLUTION:
1