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How do Young Earth Creationsts explain the embedded telomeres in human chromosome 2 showing ape chromosomes...?
.....conjoined in the way which evolution theory had predicted many years before in explaining the difference in total chromosomes between humans and apes?
Do they deny that human chromosome #2 clearly shows that ape chromosomes #2 and #3 were joined so that all of the original telomeres and signature patterns remained intact? How would this be explained in a "Intelligent Designer created each species in its final form and it has remained unchanged since."?
11 Answers
- 1 decade agoFavorite Answer
Apparently one of your responders has no real understanding of what you are talking about.
>>"The evidence does indicate (assuming that the God-created-it-to-look-like-fusion explanation is invalid) that human chromosomes were once more similar to those of apes than they are currently, but that is all."
So his assumption is that goddidit!
It's not that the human chromosomes were ONCE more similar to those of apes. They still are. But, in the case of human chromosome 2, two chromosomes have joined together.
Just for the edification of that creationist (though I doubt that anything would edify him):
About fifty years ago, when it was first noted that apes have 24 pairs of chromosomes, but humans have 23, the creationists subsequently pounced upon that as evidence against the evolution of humans from a common ancestor with the apes. The evolutionary scientists, however, using evolutionary theory and an understanding of genetic modification, proposed that two of the chromosomes must have joined together in the line that led to man from the common ancestor, thus reducing the chromosome number.
That prediction has been verified with the results of the recent human and chimp genome projects. It was found that human chromosome 2 is the result of the joining of two chromosomes that have homologues in the chimp. The decoding of the genomes revealed that human chromosome 2 has a stretch of non-functioning telomere coding in the exact place it should be if the two chromosomes had joined in the human line from the common ancestor with the apes, and there is also non-functioning coding for a centromere in the exact location where the extra centromere would be as it occurs in one of the homologous chimp chromosomes, as well as a functioning centromere in the same location as in the other homologous chimp chromosome.
Long before the genome projects verified it, this article contained an example of the proposition that two of the ancestral chromosomes joined together to form human chromosome 2. (The link is to an abstract of the article. The full article is available for a fee. Sorry)
http://www.sciencemag.org/cgi/content/abstract/215...
The following site (which is an NIH human genome site), however, does have this statement: "Humans have 23 pairs of chromosomes - one less pair than chimpanzees, gorillas, orangutans and other great apes. For more than two decades, researchers have thought human chromosome 2 was produced as the result of the fusion of two mid-sized ape chromosomes and a Seattle group located the fusion site in 2002."
http://www.genome.gov/13514624
These sites explain the finding of the genome projects.
http://www.evolutionpages.com/chromosome_2.htm
http://en.wikipedia.org/wiki/Human_chromosome_2
http://www.gate.net/~rwms/hum_ape_chrom.html
No creationist pseudo-scientist could make a before-the-fact prediction like that. All they can do is to make up pseudo-explanations after the fact of the finding.
Just for clarification. Since all of the great apes have 24 pairs of chromosomes, and the chimpanzee is our closest ape relative as indicated by comparison of the DNA of each species, the combining of the two chromosomes must have occurred in the line leading to humans after the separation from the line leading to chimps.
And when the two chromosomes were originally combined in one of the pair set, they could still have matched up with the separate chromosomes of the other set of the pair--like lining up two short straws alongside a long straw--so there would not necessarily have been a reproduction problem.
There may have been an evolutionary adaptation advantage in having on a single chromosome two particular genes that were originally on the two separate chromosomes. For example, the two genes may have complemented each other, and their ending up on a single combined chromosome kept that complement intact, whereas when they were on separate chromosomes they could easily have been lost to each other in the genetic shuffling process that normally occurs during reproduction.
The genetic advantage would have been naturally selected in the individuals having the combined chromosomes, and the combined chromosomes would have been spread throughout the population over succeeding generations of the line leading to humans.
- thundercatt9Lv 71 decade ago
Actually, the evolutionary interpretation has overstepped the mark -- it doesn't demonstrate common ancestry, it assumes it. All the way through it talks about the chromosomes of a common ancester etc. But by putting the evidence into the evolutionary framework ahead of time it has confused what the evidence actually points to. The evidence does indicate (assuming that the God-created-it-to-look-like-fusion explanation is invalid) that human chromosomes were once more similar to those of apes than they are currently, but that is all.
- 1 decade ago
Creationism has no facts to back up any of their claims, Creationism is load of circular BS.
Creationism cannot explain anything Scientificly because it relies not on truth, but mysticism.
- ?Lv 71 decade ago
Probably the same way they explain endogenous retroviral markers at the same point in the genomes of humans and chimpanzees:
"Huh?"
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- GadgettLv 51 decade ago
So when do they change it to, The Fact Of Evolution?
Chromosomes have nothing to do with evolution, except for mating.
- Anonymous1 decade ago
The same thing they do with any fact that does not support their fantasy, they ignore it or say that satan did it.
- 1 decade ago
They change the subject, or claim that we have blind faith in the scientists who discovered the gene.
Source(s): Give me a cookie!! Or else... - Anonymous1 decade ago
Why would you even invite those halftards out of their caves?
- Anonymous1 decade ago
they don't explain things that contradict their beliefs they ignore them.