Genetics

Evidences for a Recent Creation: Part 2

November, 2005

Part I mentioned helium retention in zircons and young carbon 14 dates as evidences for a recent creation and for an acceleration of decay rates in the past. Such an increase in decay rates should have more of an effect on ages computed from isotopes with long half-lives than elements with short half-lives.

Also, alpha decay and beta decay use different processes. Therefore they may not be affected the same amount by an increase in the decay rate. So discordances between alpha and beta decay ages are an evidence of disturbed decay. To sum up, the following are the evidences one would expect from accelerated decay in the past: Carbon 14 ages should be much younger than other isotopic ages like K-Ar, U-Pb, et cetera. Alpha and beta ages should differ. And ages computed from elements with long half-lives should be more affected than ages computed from elements with short half-lives.

Evolution - Impossible to Embarass its Believers

September, 2006

Written by Henry Morris, PhD

Introduction and Tribute: by Mark Stephens, MCS, former Chairman and current board member of TASC

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Henry M. Morris, Ph.D.
Late Founder and President Emeritus of ICR

Dr. Henry Morris wrote this article for Acts and Facts, the monthly publication of the Institute for Creation Research (ICR), shortly before he died on February 25, 2006, at the age of 87. His messages, as was this article, were always clearly stated and well referenced from the Bible and the scientific literature. I believe God gave Dr. Morris a long life to be a courageous, intelligent messenger to help us understand that truly objective scientific observations and evidences support the Genesis account of creation, that we can rely on this account as the true Word of God, and that God is our Creator. Dr. Morris spent his life to help establish and strengthen our faith in God so that we can wholeheartedly believe in Him, accept His gift of our Savior, Jesus Christ, and go forward joyfully in His grace unto good works as he did.

How Old Is Humanity?

June, 2006

There are a number of evidences that the human race is very young. For example, in an article in Science1, the age of the human race is is estimated to be 1,000 to 10,000 generations: "...1000 to 10,000 generations old, which is roughly the age of the human population,..."

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We review some evidence for the youth of the human race, including recent findings concerning mitochondrial DNA mutation rates that give even a much younger age than 1,000 generations.

Age estimates are obtained by observing differences between the DNA of different individuals and are calculated using estimates of mutation rates. Mitochondrial DNA is often used for this; it is separate from the bulk of the human DNA, which is found in the cell nucleus. Mitochondrial DNA has about 16,000 base pairs and mutates, apparently, much faster than the nuclear DNA. Human mitochondrial DNA has been completely mapped, and all the coding regions are known, and the proteins or RNA for which they code. Some of the mitochondrial DNA does not code for anything and is known as a control region. This region appears to mutate faster than any other region, because the variation among humans is greatest here.

Who Were the Neanderthals?

January, 2009

Neanderthal

The Devil’s Tower Neanderthal child (model reconstruction)
ht
tp://www.ifi.uzh.ch/~zolli/CAP/Gib2.htm

The identity of the Neanderthals is a hotly debated question in anthropological circles nowadays. The question is whether Neanderthals and Homo sapiens interbred. Even in the church, the question of whether the Neanderthals were the descendants of Adam and Noah or genetically and spiritually separate species continues between young earth and progressive creationists. For those who take the scriptures in a straight-forward manner, the Neanderthals must have been a fully human post Flood people, whose unique morphological traits were erased through interbreeding with our ancestors.

Man or Ape: Which are You? Which do You Choose?

March, 2007

Mar 01, 2007 at 12:00 AM

O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and oppositions of science falsely so called: Which some professing have erred from the faith. Grace be with thee. Amen.” I Timothy 6: 20-21 (KJV)

As we approach this topic, I want to remind us of Paul’s admonition to the young Christian, Timothy, to make strong efforts to keep his faith. Dr. Henry Morris in his commentary on these verses in his annotated The Defenders Study Bible points out that “Science falsely so called” is in the Greek, literally “pseudo-science” or “pseudo-knowledge."

"Junk" DNA as Evidence for Evolution?

January, 2003

"It is a capital mistake to theorize before you have all the evidence. It biases the judgment."-Sherlock Holmes in a Study of Scarlet

Back in the 1960s, scientists discovered sections of DNA that did not code for proteins. These non-coding DNA strands were assumed to be non-functional and were referred to as "junk" DNA, the presumed evolutionary remnants of ancestral organisms.1 Almost 99% of human DNA is known to be non-coding.


A little background will facilitate discussion of non-coding DNA. Information in coding DNA sequences is transcribed into mRNA (Figure 1). mRNA exits the nucleus and attaches to ribosomes, the molecular machines that generate proteins. In the ribosome, the information in the mRNA is translated into an amino acid sequence to form a protein.

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Figure 1: Protein Formation from Coding DNA

The transcription of information from DNA to mRNA is where non-coding DNA is encountered (Figure 2).

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Figure 2: mRNA Formation by Removal of Introns

Racism: Human "Races" or "One Blood"?

April, 2004

"There is no way to understand the cultural cancer of racism until we seriously read the Bible. For this breathtaking collection of 66 books is completely silent on our modern concept of "races". Tragically, blacks, Orientals, whites—all of us—have been pushed into "boxes" (the metaphor for which is the stinking, grisly railroad car...of the Holocaust) and we have forgotten that God has "made of one blood all nations of men." (Acts 17:26).1

Intelligent Design

May, 2006

The phrase "intelligent design" is heard a great deal lately in the media, usually in the context of secondary school science education.

William Dembski

A mathematician and a philosopher, William A. Dembski is the Carl F. H. Henry Professor of Science and Theology at Southern Seminary in Louisville where he heads its Center for Theology and Science. He is also a senior fellow with Discovery Institute's Center for Science and Culture in Seattle and the executive director of the International Society for Complexity, Information, and Design (www.iscid.org).

Does the Molecular Evidence Prove Common Ancestry is a "Fact?"

November, 2006

Genesis 1 describes the separate creation of various organisms “after their kind.” This means that all life on earth is primarily related through having a common creator and not through common descent. When evolutionists claim that molecules-to-man macroevolution is a “fact”, they are often referring to evidence for common ancestry irrespective of any evolutionary mechanism. This approach helps them avoid the inherent difficulties associated with explaining how point mutations, genetic recombinations, gene duplication, and natural selection could create new genetic information by chance. One way evolutionists try to support the idea of common ancestry involves comparison of homologous DNA sequences and proteins between organisms (molecular homology). Presumably, the greater the similarities between DNA or protein sequences in different organisms, the more recent has been the divergence from a common ancestor. Two lines of molecular evidence will be explored in this report: comparisons of cytochrome c and endogenous retroviral elements (RVEs).

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Recent Discoveries in Genetics

May, 2007

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Several recent discoveries in genetics reveal even more of the amazing properties of the genome and give additional evidence for the design of life by an intelligent creator. DNA consists of a long sequence of four nucleotide bases. Proteins consist of sequences of about twenty amino acids, and are specified by a coding system in which three successive nucleotide bases of DNA constitute a “codon” and are translated into a specific amino acid. However, there are more codons than amino acids, so more than one codon corresponds to a given amino acid in many cases.

Now, within everyone’s DNA are “SNPs”, single nucleotide polymorphisms. This is a site at which many humans have differing nucleotides. Sometimes such a difference does not influence the amino acid coded for. For example, the codons UCU and UCC both code for serine, so a change of uracil to cytosine at this point in the RNA, corresponding to a change of thymine to cytosine in the DNA, has no effect on the sequence of amino acids in the protein. Is there then any difference between such codons in terms of their effects on the organism?

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