Monday, September 17, 2012

World Ozone Day

Polytene Chromosome was 1st observed by E.G. Balbiani in 1881 in salivary gland cells of Dipteran larvae.

December 23 - Farmers Day.

In 1994, the UN General Assembly
voted to designate Sept 16 as "World Ozone Day".

Vitamin D is produced in the skin by ultraviolet light.

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