Explore topic-wise MCQs in Bioinformatics.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.

Minimum evolution (ME) constructs a tree with a similar procedure, but uses a different optimality criterion that finds a tree among all possible trees with a minimum overall branch length. The optimality criterion relies on the formula S = bi where bi is the (i)th branch length.

A. True
B. False
Answer» B. False
Discussion
2.

Which of the following is untrue about the Fitch Margoliash?

A. Method selects a best tree among all possible trees based on minimal deviation between the distances calculated in the overall branches in the tree and the distances in the original dataset
B. It starts by randomly clustering two taxa in a node
C. It starts by creating three equations to describe the distances
D. The method searches for some specific tree topologies
Answer» E.
Discussion
3.

Corrects for unequal evolutionary rates between sequences by using a conversion step. This conversion requires the calculations of r-values and transformed r-values using the following formula ______

A. d<sub>AB</sub> = d<sub>AB</sub> 1/4 (r<sub>A</sub> + r<sub>B</sub>)
B. d<sub>AB</sub> = d<sub>AB</sub> 1/2 (r<sub>A</sub> + r<sub>B</sub>)
C. d<sub>AB</sub> = d<sub>AB</sub> 1/3 (r<sub>A</sub> + r<sub>B</sub>)
D. d<sub>AB</sub> = (d<sub>AB</sub>/3) 1/2 (r<sub>A</sub> + r<sub>B</sub>)
Answer» C. d<sub>AB</sub> = d<sub>AB</sub> 1/3 (r<sub>A</sub> + r<sub>B</sub>)
Discussion