This graph shows the rate of evolution in three different genes. In a pair of sp

Question

This graph shows the rate of evolution in three different genes. In a pair of species that you are studying, you find 120 amino acid substitutions in a 200 amino acid stretch of Hemoglobin. This pair of species most likely diverged from one another in what geological period?

Precambrian

Carboniferous

Tertiary

Cambrian

There is no way to estimate based on the data in this graph?

a.

Precambrian

b.

Carboniferous

c.

Tertiary

d.

Cambrian

e.

There is no way to estimate based on the data in this graph?

This graph shows the rate of evolution in three different genes. In a pair of species that you are studying, you find 120 amino acid substitutions in a 200 amino acid stretch of Hemoglobin. This pair of species most likely diverged from one another in what geological period? a. Precambrian b. Carboniferous c. Tertiary d. Cambrian e. There is no way to estimate based on the data in this graph?

Explanation / Answer

Based on the given data, the substitution in amino acid sequence (120) of hemoglobin occurs during the Precambrian period at approximately 650 million years ago between vertebrates and invertebrates. Thus, the correct option is (a) Precambrian.     

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