Deoxyribonucleic Acid (DNA) - Experiment 2 - Comparing DNA: Does the DNA from different species have the same appearance?
Experiment 2
Comparing DNA: Does the DNA from different species have the same appearance?
Purpose/Hypothesis
The DNA molecule produces the unique characteristics for all life forms. DNA is composed of the same biochemical molecules in all species: four nucleotides and a sugar-phosphate backbone. Nucleotide sequences, which account for the distinctive characteristics, cannot be seen by the naked eye.
In this experiment you will compare if DNA appears the same in four different species. You will conduct the same DNA extraction process on each of the species and then examine its physical characteristics.
To extract DNA, you will have to separate out the DNA from all the cell's other molecules. You will first liquefy the substance and separate the cells by blending it. Detergent or soap will break apart the cell's outer and inner membrane, in...
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