1) I understand different species have different number of chromosomes but what do these numbers actually represent? i.e. What is the significance of Humans and hares having both 46 chromosomes?

2) If we found the DNA of, say, Isaac Newton and since thats the code that includes every instruction to build him, would it be possible to make a clone of him with current technology? With hypothetical technology?

3) How long does it take for the environment to mutate genes so it better adapts to it? Such as some people having light skin due to lack of sunlight in those areas necessary for Vitamin D production. How does the mutation "know" which gene to alter so that the skin becomes brighter?

4) Doesn't the "few billion" bits of data that the human DNA stores seem a bit too low? I would imagine there would be way more data on how a human would function. All those cells would need a lot of instructions.

I will post more questions when I remember those that I was thinking on before.

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A slight inclination of the cranium is as adequate as a spasmodic movement of one optic towards an equinine quadruped utterly devoid of any visionary capacity.