Essay About Thick Layer And Middle Layer

Extracting Dna From Onions
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Extracting DNA from Onions:
By Arun R Shrivats
Observations:
Qualitative Observations:
Qualitative Obervations of DNA Extraction Process in Onions
Stage in DNA Extraction Process
Qualitative Observations
After addition of Dish Soap
Foam formed at the top
Greenish yellow
Fluidy
Opaque
Odour: Mixture of onion and soap
After 5 minutes
Foam formed t the top
Lime colour
Fluidy
Opaque
Suspended particles
Odour: Mixture of onion and soap
After pouring through a strainer
Lime colour
Translucent
Fluidy
Foam on the circumference
Odour: mixture of onion and soap
After addition of meat tenderizer
Lime colour
Translucent
Fluidy
Foam on the circumference
Odour: mixture of onion and soap
After 5 minutes
Lime colour
Translucent
Fluidy
Foam on the circumference
Odour: mixture of onion and soap
After layering of alcohol on top
Bubbles rising to the top
Thick layer on the top
Thick, white stuff formed
Three layers: 1) top layer – full of bubbles – opaque; 2) middle layer -alcohol- translucent; 3) bottom layer – original mixture – translucent
After 1 minute
Bubbles rising to the top
Thick layer on the top
Thick, white stuff formed
Three layers: 1) top layer – full of bubbles – opaque; 2) middle layer -alcohol- translucent; 3) bottom layer – original mixture – translucent
Froth
Viscous, mucus-like
White
Soapy & full of bubbles
Opaque
Onion mixture
Light yellow
Very fluidy
Strong onion odour
Foam formed at the top
Opaque
Dish soap
Dark green
Very viscous
Bubbles trapped inside it
Foam formed at the top
Translucent