3a) How many of the 21 nucleotide positions exhibit apomorphic character states?

Question

3a) How many of the 21 nucleotide positions exhibit apomorphic character states?

3b) How many qualify as synapomorphies?

3c) List the taxa and nucleotide positions that reflect autapomorphic changes.

3d) How many of these apomorphies are transitions? Transversions?

Drawing from your knowledge of point mutations…

3e) What apomorphic pattern is apparent for this segment of DNA sequence?

3f) Identify the nucleotide position, along with the taxon and type of DNA substitution, you consider to be the rarest in the dataset.

3. Consider the DNA sequence data matrix below and address questions about the genus Yus. (Note: the genus Xus is the sister taxon to Yus) Taxon 12 34567 8910 11 12 13 14 15 16 1718 1920 21

Explanation / Answer

Answers:

3a) Among all the taxons, Yus rho showed amorphic character. (total 6 taxons)

3b) Yus rho is qualified as synapomorphies.

3c) i. Xus fit - 9

ii. Yus yus - 12

iii. Yus rex - 3 & 15

iv. Yus min - 18

v. Yus rho - 12,18 & 20

vi. Yus moo - 15

3d) among all 6.

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