Answer:
1. Forms part of the subunits for the protein-synthesizing organelle. - Ribosomal RNA.
2. A molecule that binds to a specific codon and specific amino acid simultaneously. - Transfer RNA.
3. Attaches the correct amino acid to its transfer RNA. - Synthetase enzymes.
4. It provides the energy needed for synthesis reactions. - ATP
5. Produced in the nucleus, this molecule specifies the exact sequence of amino acids of the protein to be made. - Messenger RNA
6. May be attached to the ER or scattered in the cytoplasm. - Ribosomal RNA.
Important notes:
- Messenger RNA is also written as mRNA
- Transfer RNA is also written as tRNA
- About point number 6:
To be more accurate, it is the whole ribosome that can be attached to the ER or scattered in the cytoplasm. However, because the ribosome is made of proteins <u>and</u> Ribosomal RNA, then <u>it is also true that </u><u><em>Ribosomal RNA can be attached to the ER or scattered in the cytoplasm</em></u><u>.</u> Although "synthetase enzymes" could be another option for this point, it is not accurate to say that synthetase enzymes,<u> in general</u>, could be <em>attached to the ER or scattered in the cytoplasm</em> because <u>there are other synthetase enzymes in other places besides the cytoplasm</u> or the Endoplasmatic Reticulum (ER).
Answer:
Suppose you take glycine tRNA and modify it so that the glycine is changed to valine. You then find that the amino acid sequence in the generated proteins does not show the expected change. This result would suggest that the protein synthesis machinery recognizes the tRNA anticodon and is congruent with what was actually found by researchers.
Explanation:
A group of researchers led by Seymour Benzer demonstrated that the anticodon of the charged tRNA was recognized by the protein synthesis machinery, when they changed the amino acid sequence. This example shows the exact result as found by the researchers.
The answer would probably be be D