Florida Biology EOC Practice Test

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Prepare for the Florida Biology EOC Test. Use our comprehensive flashcards and multiple-choice questions, complete with hints and explanations, to get ready for your Biology End-of-Course exam!

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What attaches to the ribosome during translation?

DNA
mRNA
rRNA
tRNA

The correct answer is: DNA

During translation, the molecule that attaches to the ribosome is mRNA. The ribosome reads the sequence of the mRNA, which contains the genetic instructions for synthesizing proteins. mRNA, or messenger RNA, is transcribed from DNA and carries the genetic information to the ribosome, where translation into a protein occurs. The ribosome facilitates the pairing of the mRNA codons with the corresponding amino acids brought to the ribosome by tRNA (transfer RNA). While rRNA (ribosomal RNA) is a component of the ribosome itself, it does not directly attach during the process of translation as mRNA does. Understanding this process illustrates the central dogma of molecular biology, highlighting the roles of DNA, mRNA, tRNA, and rRNA in the synthesis of proteins.