BIOLOGY
PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a form of RNA that carries the instructions for making a protein from a gene and delivers it to the site of translation.
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single strands of RNA that temporarily carry a specific amino acid on one end.
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molecules that are part of the structure of ribosomes
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None of the above
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Detailed explanation-1: -transfer RNA (tRNA) – a type of RNA that is folded into a three-dimensional structure. tRNA carries and transfers an amino acid to the polypeptide chain being assembled during translation. translation – the process in which a cell converts genetic information carried in an mRNA molecule into a protein.
Detailed explanation-2: -A tRNA molecule has an “L” structure held together by hydrogen bonds between bases in different parts of the tRNA sequence. One end of the tRNA binds to a specific amino acid (amino acid attachment site) and the other end has an anticodon that will bind to an mRNA codon.
Detailed explanation-3: -Answer and Explanation: tRNAs have one amino acid attached per molecule.
Detailed explanation-4: -4: A tRNA molecule is a single-stranded molecule that exhibits significant intracellular base pairing, giving it its characteristic three-dimensional shape.
Detailed explanation-5: -Amino acids are attached to tRNAs at the 3′-terminal adenosine at the end of a CCA trinucleotide sequence that is common to all tRNAs. In the second domain is a trinucleotide sequence known as the anticodon, located ∼75 Å from the amino acid attachment site.