Extinction happens when there is a major climate change, then some species are unable to adapt to those changes, so they become extinct. Extinction basically occurs when species are unable to adapt quickly enough to the environment
The electron transport system in the light dependent reaction of photosynthesis is the one that is responsible for the production of electrons that are used as precursor for NADPH production. The NADPH and the other products that are made during the light dependent reaction are used during the dark reaction to produce sugar molecules. So, if the electron transport is disabled, glucose molecule will not be produced during the dark reaction.<span />
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Yes. You could do this by adding solvents to break down any cell walls, centrifuge to separate the DNA, if you haven't got much then upscale with PCR, gel electrophoresis could be used to detect the DNA, and Sanger sequencing to find the sequence.
