Human and sperm whale myoglobin have very similar primary structures. Which of the following statements are correct? The two proteins are very likely related evolutionarily. The differences in the sequences in many instances represent a conservative change (such as L for I). The differences in the sequences in many instances represent a nonconservative change (such as D for A). There is no correlation between the two proteins, since they originate from very different species.

The correct answer will be options-

1. The two proteins are very likely related evolutionary.

2. The differences in the sequences in many instances represent a conservative change (such as L for I)

Explanation:

The Theory of evolution suggests that all the species on the planet share a common ancestor and they all have descended from it.

At the molecular level, the structure of myoglobin protein the sperms of whale and human acts as an evidence in support of the theory.

The similarity between these structure shows that they shared a common ancestor as both belong to the same class Mammalia and their structure resemblance is due to the conservative sequence in DNA and the amino acids in a protein. The conservation of sequence indicated that they have been maintained by the natural selection.

Thus, the selected options are the correct answer.