Many phylogenetic trees are based on DNA sequence similarities.What is the practical result of this similarity?

Question

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The practical result of DNA sequence similarity is that species with very similar DNA will have similar structures, enzymes, and appearance. This is because the genetic code contained within DNA determines the characteristics of an organism. Therefore, species with higher DNA sequence similarity are likely to be more closely related and share similar physical characteristics.

Answer: D
 Another important factor to consider when using DNA sequences to construct a phylogenetic tree is that mitochondrial DNA might be different from nuclear DNA. When using DNA sequence data, it is essential to ensure that the correct type of DNA is being analyzed. Mitochondrial DNA is often used due to its high mutation rate and ease of extraction, but it only represents a small portion of an organism's total genetic material. Nuclear DNA contains the majority of an organism's genetic information and is more accurate for analyzing evolutionary relationships.

Many Phylogenetic Trees Are Based on DNA Sequence Similarities