In other words you can't.
I can do it, and I did do it with 4 sequences. It really isn't that hard to do. What is so hard to understand here? For each mutation, the other three sequences had the same base with one sequence being different at that position. The rules of parsimony require you to assume that one mutation occurred instead of 3 of the same mutations. Here are the sequences again:
insertion 1: ACAAAAAAA
insertion 2: AAAAAAAAA
insertion 3: AAAAAAAAA
insertion 4: AAAATAAAA
In insertion one there is a difference between the sequences at the second base. It is possible that C is the common ancestral base at that position and that the same mutation occurred in the other three insertions. However, it is much, much more likely that one mutation occurred in the first insertion. The rule parsimony requires you to conclude that A is the ancestral base at the second position. The same applies for T at the fifth position in the 4th insertion. The consensus sequence for this homologous stretch of DNA is all A's. That is how you determine a consensus sequence.
The rules you seek to impose need to be under a light here, not sluffed off as hot stuff by cunning slate of hand. Come into the light of day, and let's see what you really got. Anytime....
I want to see your rules as well. How do you determine which of the laws changed, when did they change, and how much did they change? What evidence do you have for any change in any law over the last 13 billion years?
I have already offered Supernova 1987a as a demonstration that the laws have not changed. Using simple trigonometry you can verify that the speed of light has stayed the same over the last 160,000 years. On top of that, using spectrophotometric measurements you can actually measure the disappearance of radioactive Cobalt isotopes in the supernova. The observed rate of disappearance of these Cobalt isotopes is the same rate that we observe now on Earth. Therefore, the rate of radioactive decay was verified as well.
What experiments do you have which demonstrate changes in these values over the last 13 billion years?
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