The RNA that picks up a specific amino acid from the amino acid pool in the cytoplasm to the ribosome during protein synthesis
Correct answer: D. tRNA
- A. rRNA
- B. RNA
- C. mRNA
- D. tRNA
Explanation
Transfer RNA or tRNA helps in the transfer of amino acids to the ribosomes, mRNA complex to form the polypeptide chain. It has four key regions- a carrier and recognition end, an enzyme site, and a ribosome site. This recognition end has three anticodons with the help of which amino acids are identified. rRNA forms 67% of 70S ribosomes and 50% of 80S ribosomes. mRNA carries the coded information from DNA for the synthesis of proteins. mRNA stands for messenger RNA. It is the RNA molecule that carries the genetic information from the DNA in the nucleus to the ribosome in the cytoplasm. rRNA stands for ribosomal RNA. It is the main component of the ribosome, which is the organelle where protein synthesis takes place. The rRNA molecule helps to position the mRNA molecule and the tRNAs on the ribosome.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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