What is the maxium number of combinations that can be made when dealing with the human DNA sequence?

Answer 1

In essence, it is infinite. If there are 6 billion base pairs in the diploid genome, and each one can have one of 4 bases at each position, you could say 6000000000^4 which would be 1.3 x 10^39. This doesn't account for anyone with one more or one less base in their genome, or hundreds more or less.

Answer 2

The number of combinations is actually less if you want the DNA sequence to remain human. It's often said that humans are 99% genetically identical, so assuming 6 billion base pairs, 60 million of these would vary among humans. 60,000,000^4 = 1.3E31, still a very large number.

Answer 3

If you just count the combinations possible coming from both sets of grandparents, then the number of combinations is in the trillions. If you add all the other combinations that can happen, the number is enormous, but not infinite.

Answer 4

i've got faith you're able to desire to refine your question. There are 40 six chromozomes, i don't comprehend what number nucleotide pairs in line with chromozome. yet, a number of those mixtures will finally end up putting your nostril on your elbow. have you ever considered Alien, Resurrection? think of of that lab scene the place Ripley is going in and sees all those mutation variations of herself. a great (and ill) scene. There are hundreds of thousands and hundreds of thousands of gene pairs that are non-survivable, hundreds of thousands the place (think) the middle sits outdoors the ribcage or the concepts is a bubble outdoors the buttocks. those variations won't proceed to exist - so do we care approximately those? The question is, what number unique gene pairs are there which will yield a residing human? What subset of those (returned, like in Alien) will yield a residing human that the human community will think of is "common"? (i.e., a residing human organism, yet not joined on the pinnacle like siamese twins). as quickly as this question is ordinary, then it is going to advise that the full human DNA chain could have been mapped. BioEngineers will comprehend that "this" sequence of nucleotides finally ends up in pink hair, and "that" sequence on chromozome 8 makes you left exceeded ... etc. The map will might desire to be finished to declare what number variations can stay and be "common" in society. All conceivable variations would be defined: you would be waiting to p.c.. each and all the features (blue eyes, blond hair, long legs) which you fairly choose on your offspring. Frightful. be careful what you ask for. finally, as quickly as all of us comprehend this quantity, we are going to be waiting to nicely known how long it is going to take till now we are in a position to have duplicates. What do I advise? think there are over eighty trillion conceivable conceivable mixtures of DNA. think that interior the 365 days 2009, the eighty trillion and popular human (for the time of all time) would be born. which will advise, that the quantity "eighty trillion plus one million" human could have non-unique DNA, it's going to be a reproduction with somebody who became into born earlier (or, honestly, it skill that someplace interior the eighty trillion and popular line of people, there could have been a reproduction). which would be very cool. (And with a bit of luck it is not extremely a Hitler - or a Hillary!).