SOMEONE PLEASE HELP ASAP!! DUE TOMORROW!! WILL MEDAL FIRST PERSON TO HELP!!

21. You are a biologist who is searching for new species in the Amazon jungle. You find two new species of beetles, beetle A and beetle B, that resemble each other closely but have somewhat different markings on their wings. In addition, both beetle A and beetle B resemble beetle C, a species that has already been identified. How could DNA similarities be used to help determine whether beetle A and beetle B are more closely related to each other or to beetle C?

Question

SOMEONE PLEASE HELP ASAP!! DUE TOMORROW!! WILL MEDAL FIRST PERSON TO HELP!!

21. You are a biologist who is searching for new species in the Amazon jungle. You find two new species of beetles, beetle A and beetle B, that resemble each other closely but have somewhat different markings on their wings. In addition, both beetle A and beetle B resemble beetle C, a species that has already been identified. How could DNA similarities be used to help determine whether beetle A and beetle B are more closely related to each other or to beetle C?

ilovemath14 · Answer

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brittanyrolfe · Answer

Well, if they look like each other, you could say that they have similar DNA. For example, humans look similar but are not the same because although we are the same species, we can differ in the structure of our DNA and therefore have different phenotypes. So if the scientists decide to sequence each beetle's genome, they might be able to find that they have more in common than they think. These subtle differences could be because they have adapted in different way, or had different selective pressure. It could also have been from mutation, and been spread down generation to generation.