A contusion occurs when a strong blow or repeated blows from an object struck the body, crushing the underlying muscle fibres and connective tissues without breaking the skin.
A contusion can vary in severity depending on the object and location of the injury. For example a contusion to the brain may cause a concussion that can cause serious symptoms that require immediate medical attention
One gene for a particular trait is transcribed from DNA during transcription. The code for the gene is transferred by mRNA to the ribosome for protein production to begin. Proteins are constructed from a polypeptide chain of amino acids
Haploid cells are found in the reproductive organs of adults, known as gonads. In males these are the testicles and females these are the ovaries.
