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Monday, September 04, 2006
Why does a banana skin turn black after a few days, even when the banana is kept in the refrigerator
Why does a banana skin turn black after a few days, even when the banana is kept in the refrigerator?
Its nice question people used face from thier Childrens, Most of us really dont know how its happened even we kept in Refrigerator.. Here is the exact answer for that to help to save your face.
The green skin of banana contains a gaseous plant hormone, ethylene, which diffuses into the fruit and hastens the process of ripening. It is yellow when the fruit is ripe and turns black with the production of more and more ethylene. The large number of enzymes of Kreb’s cycle convert citric acid, mallic acid and oxalic acid into glucose in a banana, to make it sweet during the process of ripening. When the banana is kept in the refrigerator, the enzymatic reactions are stopped by the cold but the production of ethylene hormone continues.
This turns its skin black.
This turns its skin black.
What is a DNA signature?
Every human cell contains DNA (DeoxyriboNucleic Acid), the blue print for all life and a genetic code that is unique to each individual. DNA is nature’s digital signature. Our DNA signature helps forensic experts in detecting crime, tracing family lineage, etc. Various agencies are working on creating DNA signatures’ data for future use.
