The origin of life complexity continues to baffle science. There are two competing scientific theories on the origin of life. One is called the “Darwin school of thought” which posits that meteorites brought elements to Earth that led to the formation of compounds which led to RNA and then to DNA. The second theory says that life originated in mineral-rich hydrothermal vents on the ocean floor.
The problem with both of these theories is that they are not explaining the origin of life complexity. They are only explaining some of the compounds that would be necessary to form life. Many scientists question the possibility of either of these theories and whether organic compounds could survive in the conditions of the early Earth. The bigger issue is how you could move from those compounds–no matter how they were formed–to a living cell.
You not only must have the ingredients to make life, but you also need a protected environment in which those compounds can be combined. Life could not begin in a toxic atmosphere or if there were agents on Earth’s surface that would destroy the ingredients. RNA and DNA involve long strands of nucleotides. Scientists in the laboratory can only produce such chains in a carefully controlled environment. The time element involved in producing increasingly complex molecules is also an issue.
When we enter probabilities into this process, the odds of each step happening by chance are very unlikely. Then to put all the steps together in the right order makes the probability of it happening by chance outside the scientific limits of what is possible.
Turkish education minister Ismet Yilmaz has announced changes to the textbooks in that country. Starting next fall, the Turkish government will remove evolution and all references to Charles Darwin from the textbooks along with 170 other topics that do not coincide with the Islamic government views. The new curriculum to replace these topics is said to be “value-based” and in harmony with student development.
The current biology course for twelveth grade biology has a section titled “The Beginning of Life and Evolution.” It is being replaced with a unit titled “Living Beings and the Environment.” This new course will include discussions of adaptation, mutation, and natural and artificial selection without mentioning evolution or Darwin. An earlier section for an eleventh-grade philosophy class will be titled “Evolution and other Ontological Opinions.”
The situation is complicated in Turkey not only because of the influence of Islam but also because of the failed coup in 2016. The government is using the schools as a way to control the population. Included in the new curriculum are units about the groups that the government is fighting such as the Kurdistan Worker’s Party and the U.S.-based Muslim cleric Fethullah Gulen.
American creationist groups that want to include their particular view of biology in education may want to look at what is happening in Turkey. The new curriculum, which is religiously based, is turning the classroom into a political football. It will be interesting to see if the Turkish government will remove evolution from the educational system without causing major civil unrest.
Over the past several months, the media has published dozens of articles about a new genetic technique of modifying DNA called CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats). This method can be used to edit the embryonic or reproductive cells of human beings, passing on genetic changes to future generations. It makes altering our DNA faster and easier. The media has emphasized the possible positive impact of this technique. The Week magazine (March 14, 2016) called it “genetic research nearing a breakthrough that could transform the world.” We know that many diseases are genetic in nature, including sickle-cell anemia, Huntington’s disease, muscular dystrophy, and some forms of cancer. The problem is that with some 20,000 genes involved and the fact that genes interact, the possible negative consequences of making permanent changes to human DNA are very high. This technique could potentially be used to alter the genomes of a child to suit parental preferences. The question is whether CRISPR will be used for therapy or enhancement or both. This bioethical question cannot be answered by science alone.