Question

Flowering plants have common ancestors with other plants and plant-like organisms. The table below shows the last common ancestor shared between flowering plants and two other types of organisms.OrganismLast common ancestor with flowering plantsCone-producing plants250 million years agoGreen Algae500 million years agoA scientist compares the amino acid sequences of a protein produced by flowering plants, a cone-producing plant, and green algae. What prediction about these sequences is supported by the data in the table?ResponsesThe amino acid sequences for all three organisms will be identical.The amino acid sequences for all three organisms will have no similarities.The amino acid sequences for flowering plants and green algae will be the most similar.The amino acid sequences for flowering plants and cone-producing plants will be the most similar.

Answer 1

The amino acid sequences for flowering plants and cone-producing plants will be the most similar.

Reason: flowering plants and cone-producing plants share a more recent common ancestor (250 mya) than flowering plants and green algae (500 mya), so there has been less time for sequence divergence between the two plant groups.