Remember the Step's for Tomorrow
BS 2nd
Prodecure
BS 2nd
- Required Things
- water 45ml
- soap 5ml (dna is in nuclei and cell wall protects it and these are fat rich molecules, so we add soap to dissolve fat)
- salt 1 tea spoon (it seprates dna from histone proteins)
- iso propanol 5ml
- blood 5 drops
- filter paper
Prodecure
- Add 45 ml dist water to a beaker and add 5ml of soap (detergent) in it and mix it. then add 1 spoon of salt in it and mix it again.
- now add 5 drops of blood and mix it again.
- filter it and add 10ml of iso prpanol in it
- As the dna is soluable in water and does'nt dissolves in alcohol , precipitates of dna will we found the surface of the solution.
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