To test for side effects and rare effects (the bigger the sample size, the more likely that wired things may occur)
Answer:
Explanation:
so
2 breads + 2 cheeses ⇒ 1 sandwich
if we use two slices of bread each time how many sandwich can we make with 33 slices
33/2 =16.5 sandwiches
if we use two pieces of cheese in each sandwiches how many sandwiches can we make with 15 slices ?
15/2 =7.5 sandwiches
the cheese her will run out first and we would have excess bread
so we would only be able to make 7.5 sandwiches without running out of ant ingredient :)
TRNA: UCA AUG UUC AGC AAA AAG GUA UAG UUU
DNA??: TCA ATG TTC AGC AAA AAG GTA TAG TTT