Examlex
What do fossils tell us about Homo erectus's cranial capacity?
Double-stranded DNA
The normal form of DNA, consisting of two parallel strands of nucleotides wound around each other in a helix.
RNA Molecule
A nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.
Ribosomes
Cellular structures that facilitate the translation of mRNA into proteins by linking amino acids together.
Ricin
A highly toxic protein derived from the seeds of the castor oil plant, Ricinus communis, used historically in bioterrorism and research.
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