Question

Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function.

Which information would shed the most light on whether these structures are homologous or whether they are, instead, the result of convergent evolution?

a. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.
b. Both species are well adapted to their particular environments.
c. The sizes of the structures in adult members of both species are similar in size.
d. Both species reproduce sexually.
e. The two species live at great distance from each other.

Answer 1

Members of two different species possess a similar-looking structure that they use in a similar fashion to perform the same function. Which information would shed the most light on whether these structures are homologous or whether they are, instead, the result of convergent evolution?

A. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.

Step-by-step explanation:

The theory of evolution is most accurately described as an overarching explanation, supported by much evidence, for how populations change over time. Thanks to the genetic code, a lot of very different species have the same genes. If there are few differences in the gene, then the two species shared a common ancestor relatively recently. In this case, the two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.

Answer 2

a. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical.

Step-by-step explanation:

Homologous structures are structures that living organisms possess due to the fact that they shared a common ancestry. These structures could be in the form of organs or a skeletal part of the body.

Homologous structures for living organisms with a commonly shared ancestry do not have to look the same or perform the same functions.

Examples of Homologous structures are : The arm in humans, wings in bats and the flipper in whales. Humans, Bats, Whales share a common ancestry because they are mammals and they share many proteins in commone.

Also, the nucleotides that code for proteins found in the wings of bats, arms of humans and flippers in whales are almost identical.