Explanation:
They differ when they have the same chemical composition but the way in which they are arranged or put together is different.
For #1, the answer is A) Ribosomes.
Positive selection of t cells occur in .the thymus
Answer: Tempature is the independent Variable, Activity is the dependent
Explanation:
independent variables are what you manipulate in an experiement and dependent variable are what happens after you change the independent variable
tRNA-precursors were smaller than the modern tRNA and their primary function was to participate in the formation of new structures by joining two or more RNA molecules.
The adaptor hypothesis is the explanation of how information could be extracted from a nucleic acid into a string of amino acids in a specific sequence. The proposed explanation involved recognition between the adaptor (today tRNA) and the template nucleic acid .