Final answer:
Ribosomes are the special structures composed of RNA that 'read' the DNA in a cell and play a crucial role in protein synthesis.
Step-by-step explanation:
The special structures composed of RNA called ribosomes are responsible for 'reading' the DNA in a cell. Ribosomes play a crucial role in protein synthesis by translating the instructions in the DNA into proteins.
During the process of transcription, the DNA is first transcribed into a complementary RNA molecule called messenger RNA (mRNA). This mRNA carries the genetic information from the DNA to the ribosomes.
At the ribosomes, the mRNA is read in a specific order, and each three-letter codon on the mRNA corresponds to a specific amino acid. This process continues until a complete protein is synthesized based on the instructions in the DNA.
Learn more about Ribosomes and their role in reading DNA