Seafloor spreading and subduction are the driving forces of continental drift.   Pangaea was the Earth's only continent 4 bi â¦ llion years ago. Tectonic plates are small plates, while continent drift is several tectonic plates moving as a mass (continent).
The genetic code is the code that translates a sequence of three nucleotides (called a codon) into an aminoacid. The genetic code has those two properties: Unambiguous: Each codon is translated into one single aminoacid. Always.This means that UUA is the code leucine no matter what.Redundant: In some cases, there are more than one codons for a single aminoacid.For instance UUA means leucine, but so does UUG.est Answer: In a molecule of DNA, many sequences are repeated and therefore essential not used. These repeated sequences are known as redundant DNA. Ambiguous DNA is sections where the code is not precisely known but its known that it is one of two bases. These are represented by characters e.g.
Why Gene Therapy Is Important. Genes that are flawed and do not work properly can cause disease. Gene therapy is a technique for correcting defective genes responsible for disease development. Researchers may use one of several approaches for correcting faulty genes: 1  A normal gene may be inserted into a nonspecific location within the genome to replace a nonfunctional gene. This approach is most common. 2  An abnormal gene could be swapped for a normal gene through homologous recombination. The abnormal gene could be repaired through selective reverse mutation, which returns the gene to its normal function. The regulation (the degree to which a gene is turned on or off) of a particular gene could be altered.