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. Last common ancestor with flowering plants Cone-producing plants 250 million years ago Green Algae 500 million years ago A 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? (1 point) Responses The amino acid sequences for all three organisms will be identical. The amino acid sequences for all three organisms will be identical. The amino acid sequences for flowering plants and cone-producing plants will be the most similar. The amino acid sequences for flowering plants and cone-producing plants will be the most similar. The amino acid sequences for flowering plants and green algae will be the most similar. The amino acid sequences for flowering plants and green algae will be the most similar. The amino acid sequences for all three organisms will have no similarities.

Answer 1

Based on the information provided in the table regarding the last common ancestors shared between flowering plants, cone-producing plants, and green algae, the most supported prediction is:

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

This is because flowering plants and cone-producing plants share a more recent common ancestor (250 million years ago) compared to flowering plants and green algae (500 million years ago). Therefore, it is expected that the amino acid sequences of proteins from flowering plants and cone-producing plants would be more similar to each other than to those from green algae, which diverged earlier in evolution.