Question

For sequences that have ________ a phylogenetic analysis is __________

(a) diverged considerably, more challenging

(b) not diverged, more challenging

(c) diverged considerably, less challenging

(d) diverged considerably, a less work to do

The question was asked in examination.

The above asked question is from Reliability of Phylogenetic Predictions topic in chapter Phylogenetic Tree Construction Methods and Programs of Bioinformatics

Answer 1

Right option is (a) diverged considerably, more challenging

The best explanation: For diverged sequences, the analysis steps increase as well. A determination of the sequence changes that have occurred is more difficult because the multiple sequence alignment may not be optimal and because multiple changes may have occurred in the aligned sequence positions.