Colour blindness is the inability to differentiate certain colours. It comes in various degrees and types with the most common being red green colour blindness. There are multiple causes, but colour blindness is primarily inherited by a mutated X Chromosome. Due to the fact that men only have one X chromosome, if they are handed a faulty X chromosome (by a carrier mother) they will be colour blind. Women on the other hand have two X chromosomes, which is why many less women are colour blind than men.  The odds that both X chromosomes are faulty is extremely low, and the healthy one will be dominant providing normal colour vision.

 

 

 

 

 

 

 

 

 

 

http://www.colourblindawareness.org/wp-content/themes/outreach/images/slider/types/eye.jpg

 

Francesca, Rachel, Rebecca and Sarah will explain colour blindness in a series of episodes embedded below. The videos have been researched, filmed and editted by the students themselves.