Bio on DNA stuff

Sensation

Raw input from the receptor in the PNS arriving at the CNS.

Transduction

Translation of stimulus into electrical signals.

Perception

Interpretation of the sensations in the CNS.

Chemoreceptors

Receptors that detect smell and taste; found in the nose and taste buds respectively.

Photoreceptors

Cells in the eye that detect light, including rod and cone cells.

Mechanoreceptors

Sensory receptors in the inner ear that detect vibrations for hearing.

Sensory Adaptation

The decrease in response to a constant stimulus over time.

Nearsightedness

Condition where light rays focus at a point before reaching the retina.

Transcription

The process of producing an RNA molecule that is complementary to a DNA sequence.

Codon

A 3 nucleotide sequence on mRNA that encodes one amino acid.