- Oct 7, 2009
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It's good to see that not all young earth creationists accept the "adaptation by loss of information" dogma — that post-creation and post-Flood diversity of "created kinds" (baramins) is due entirely to degenerative mutations following man's Fall and God's subsequent Curse.
Of course you have to assume some sort of genetic front-loading to explain how pairs of "kinds" can walk off the Ark and start a process of hyper-evolution resulting in the vast number of species we see today. Nevertheless, Dr Jean Lightner is a creationists who finds it difficult to reconcile solely degenerative genetic changes as the mechanism for adaptation, and proposes a different model in which there are (or were) inbuilt mechanisms for specific adaptive genetic changes. She believes creationists need a "more robust" model to challenge universal common ancestry proposed by evolutionary biologists. Creationists need to have a clear understanding of the differences.
In an article "Comparative cytogenetics and chromosomal rearrangements", Lightner investigates chromosome arrangement (karyotypes] and the banding seen by chromosome painting methods.
Lightner describes studies where a new in silico method of comparison, called electronic chromosome painting (E-painting), has been used to compare genomes of different mammalian species. These show that sections of chromosomes have undergone rearrangements, both within and between chromosomes. Some of these underlie inherited diseases whilst others are associated with karyotype diversification. These breakpoints are nonrandomly distributed throughout the mammalian genome and many, termed "evolutionary breakpoints" (EB), are specific genomic locations that are "reused" during karyotypic evolution.
Lightner argues that identification of patterns of intrabaraminic chromosomal diversity should help clarify what types of rearrangements are consistent with the creation model and believes that genomic comparisons, between or within baramins, should provide useful information on genomic structure. She tells us that creationists need to address the issue of genome organisation similarity between baramins at creation. The creation model will become more robust if this is better understood.
Dr Lightner seems to be suggesting that chromosomal rearrangements are observed to be non-random due to some inbuilt mechanism that generates new gene associations specifically for creating phenotypes that better suit organisms to different environments. However, she seems to be ignoring the fact that an evolutionary breakpoint is not just the result of some meiotic accident — it then has to make it through multiple viability tests at the gamete and zygote stages, and survive natural selection as an adult to procreate and then manage to spread its new chromosome arrangements throughout the population. Consequently, what we observe at the end of this process will not be random, even if there's a predisposition to breakage at certain loci.
But lightner doesn't stop there:- she tries to explain chromosomal rearrangements by introducing the crazy subject of baranomes and variation inducing genetic elements (VIGEs).
How can someone (Peter Borger) with an M.Sc. in Biology and a Ph.D. in medicine and who's "an expert on the molecular biology of signal transduction and gene expression" write such unsupported nonsense?
If something can't be described in purely naturalist terms, then why bother trying?
In her article, Lightner states:-
Evidential arguments? But there IS no evidence!!! Just like "created kinds", baranomes are no more than wishful thinking and creationist invention. And despite what Lightner says, there is no evidence for facilitated or adaptive chromosomal rearrangements.
Of course you have to assume some sort of genetic front-loading to explain how pairs of "kinds" can walk off the Ark and start a process of hyper-evolution resulting in the vast number of species we see today. Nevertheless, Dr Jean Lightner is a creationists who finds it difficult to reconcile solely degenerative genetic changes as the mechanism for adaptation, and proposes a different model in which there are (or were) inbuilt mechanisms for specific adaptive genetic changes. She believes creationists need a "more robust" model to challenge universal common ancestry proposed by evolutionary biologists. Creationists need to have a clear understanding of the differences.
In an article "Comparative cytogenetics and chromosomal rearrangements", Lightner investigates chromosome arrangement (karyotypes] and the banding seen by chromosome painting methods.
Comparative cytogentics has been important in establishing that many mammals have undergone significant chromosomal rearrangements during their history. A diversity of karyotypes may occur within a genus or even a species. Given the considerable karyotypic diversity within some animal baramins (kinds), many of which were represented by only two animals on the Ark at the Flood, accounting for relatively rapid karyotype changes is a necessary part of the creation model. All rearrangements involve the repair of double stranded breaks. Additionally, many rearrangements are associated with alteration of heterochromatin, silencing of a centromere, and/or the formation of a new centromere. Because of the precision necessary to accomplish such changes while maintaining viability of the animal, it appears there are designed mechanisms in place to accomplish such rearrangements.
Lightner describes studies where a new in silico method of comparison, called electronic chromosome painting (E-painting), has been used to compare genomes of different mammalian species. These show that sections of chromosomes have undergone rearrangements, both within and between chromosomes. Some of these underlie inherited diseases whilst others are associated with karyotype diversification. These breakpoints are nonrandomly distributed throughout the mammalian genome and many, termed "evolutionary breakpoints" (EB), are specific genomic locations that are "reused" during karyotypic evolution.
Lightner argues that identification of patterns of intrabaraminic chromosomal diversity should help clarify what types of rearrangements are consistent with the creation model and believes that genomic comparisons, between or within baramins, should provide useful information on genomic structure. She tells us that creationists need to address the issue of genome organisation similarity between baramins at creation. The creation model will become more robust if this is better understood.
Dr Lightner seems to be suggesting that chromosomal rearrangements are observed to be non-random due to some inbuilt mechanism that generates new gene associations specifically for creating phenotypes that better suit organisms to different environments. However, she seems to be ignoring the fact that an evolutionary breakpoint is not just the result of some meiotic accident — it then has to make it through multiple viability tests at the gamete and zygote stages, and survive natural selection as an adult to procreate and then manage to spread its new chromosome arrangements throughout the population. Consequently, what we observe at the end of this process will not be random, even if there's a predisposition to breakage at certain loci.
But lightner doesn't stop there:- she tries to explain chromosomal rearrangements by introducing the crazy subject of baranomes and variation inducing genetic elements (VIGEs).
Baranomes
Evidence for the design of life: part 2—Baranomes by Peter Borger
- Baranomes are pluripotent, undifferentiated, uncommitted genomes. The origin of baranomes cannot be described in purely naturalistic terms.
- Baranomes are frontloaded with three classes of genetic elements: I) redundant, 2) non-essential and 3) essential. Genetic redundancy is an intrinsic property of baranomes and serves both in robustness and rapid diversification.
- The environment—habitat, habit or diet—often determines what part of the baranome is retained.
- Essential DNA elements—although not completely static—are stable due to natural preservation ('natural selection').
- Baranomes were designed to rapidly change arid adapt. That's why novel (adaptive) phenotypes always appear instantly.
- Variation in baranomes is the result of genetic losses, duplications and translocations, and facilitated by frontloaded variation-inducing genetic elements (VIGEs). VIGEs are what mainstreamers call ERVs, UNEs, SINES, ALUs, transposons, etc. They induce variation from the frontloaded baranomes by swapping genetic information, facilitate duplications, disruption of (redundant) genes, position effects, etc. The major part of variation observed in nature is actively generated from inside.
- Baranomes provide organisms with an urge to reproduce. Sexual reproduction preserves the baranome.
How can someone (Peter Borger) with an M.Sc. in Biology and a Ph.D. in medicine and who's "an expert on the molecular biology of signal transduction and gene expression" write such unsupported nonsense?
If something can't be described in purely naturalist terms, then why bother trying?
In her article, Lightner states:-
A proper use of evidential arguments depends on a robust creation model which requires a more detailed understanding of genetic changes that have occurred during history.
Evidential arguments? But there IS no evidence!!! Just like "created kinds", baranomes are no more than wishful thinking and creationist invention. And despite what Lightner says, there is no evidence for facilitated or adaptive chromosomal rearrangements.
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