Genetic sequences refer to the specific order of nucleotides (adenine, cytosine, guanine, and thymine) in an organism's DNA. They are used to determine species relations by comparing the genetic sequences of different organisms and identifying similarities and differences.
While genetic sequences are a very useful tool in determining species relations, they are not always the most accurate. Other factors such as physical characteristics, behavior, and geographical distribution also play a role in determining species relationships.
Yes, genetic sequences can be used to determine relationships between species that are not closely related. By comparing the genetic sequences of different organisms, scientists can identify common ancestors and trace evolutionary relationships.
Yes, there are limitations to using genetic sequences to determine species relations. For example, some species may have very similar genetic sequences but have evolved to look and behave differently due to environmental factors. This is known as convergent evolution and can make it challenging to accurately determine species relationships based on genetic sequences alone.
Scientists can use genetic sequences to classify new or unknown species by comparing their genetic sequences to those of known species and identifying similarities and differences. This can help determine where the new species may fit into the existing classification system.