An amino acids on one end of all charged tRNA molecules. Thus the correct option is A.
What is tRNA?
Transfer RNA (tRNA) is a small RNA molecule which plays a key role in protein synthesis. Transfer RNA serves as a link (or adaptor) between the messenger RNA (mRNA) molecule and the growing chain of amino acids that make up a protein.
One end of the tRNA matches the genetic code in a three nucleotide sequence called the anticodon. The anticodon forms three complementary base pairs with a codon in mRNA during protein biosynthesis.
For more information regarding tRNA, visit:
https://brainly.com/question/4089622
#SPJ2
