Nova Season 5 Episode 2
Episode Title: The Green Machine
Countries:
USA,
Airing Date: January 11, 1978
Runtime:54 mins
IMDb Rating:
Watch Nova Season 5 Episode 2 full movie online free in HD with English subtitles – no download needed.
NOVA : It has been known since the turn of the century that there are four human blood groups, based on different red cells and serum characteristics. NOVA looks at the more recent discovery that the different white cell types, as determined by a variety of different molecular markers on the cell surface, open up the possibility of the prevention of disease.