Answer the following questions from the tree below (1 point each except where in

Question

Answer the following questions from the tree below (1 point each except where indicated): 51Neochlamydia hartmannellae 60 39 Parachlamydia acanthamoebae Simkania negevensi Waddlia chondrophila Chlamydia suis Chlamydia muridarum 45 % -Chlamydia trachomatis Chlamydophila pecorum Chlamydia felis iool Chlamydia psittaci 84lChlamydia abortus Chlamydophila caviae Chlamydophila pneumoniae Escherichia coli 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.1 estimated substitutions/positions a. Which of these sequences (other than perhaps the outgroup) is the least primitive? b. Which organism is the closest relative to Chlamydia muridarum? c. Which sequence is most similar to that of Chlamydiae abortus? d. Which node is the least reliable in this tree? (circle and label "D") e. What is the approximate evolutionary distance between C. psittaci and C. trachomatis? in estimated substitutions/position) 3

Explanation / Answer

In the phylogenetic tree, we have mathematical values. The least primitive organism will have highest values. It means the most advance organisms. In the given tree, we see that Chlamydia abortus is seem to be most advance because of highest values.

We can add values by adding the values from its top branch to the lowest branch.

The value is= 100+ 56+26+100+85+84

The value is= 451

Therefore, this organism is the least primitive.

Answer b-

Chlamydia muridarum has two neighbors but the closest one would have minimum values, which is 45. Therefore, Chlamydia trachomatis is the closest relative.

Answer c-

The closest relative of Chlamydia abortus is Chlamydophila caviae.

Answer d-

The upper node of 39 values is the least reliable because of less data they covered.

""""""""""""""""Please rate the answer"""""""""""""""

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.