Question

Question 18 (3 points) Saved What characteristics make the gene for small-subunit ribosomal RNA particularly well suited for studies of the phylogeny of all living things? Choose all options that are correct. More than one option is correct It is present in all extant living organisms It has always been under very strong stabilizing selection, such that very few differences accumulate per year It was present in the first living thing The gene performs the same function in all living things The gene changes rapidly enough to cover the tree of life

Answer 1

Answers are correctly marked.

- it is present in all extant living organisms.

- it has always been under very strong stabilizing selection, such that very few differences accumulate per year.

- the gene performance the same function in all living things .