Phylogenetic Methods and Programs MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Phylogenetic Methods and Programs, a fundamental topic in the field of Bioinformatics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Phylogenetic Methods and Programs MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Phylogenetic Methods and Programs mcq questions that explore various aspects of Phylogenetic Methods and Programs problems. Each MCQ is crafted to challenge your understanding of Phylogenetic Methods and Programs principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Bioinformatics tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Phylogenetic Methods and Programs MCQs are your pathway to success in mastering this essential Bioinformatics topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Phylogenetic Methods and Programs. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Phylogenetic Methods and Programs knowledge to the test? Let's get started with our carefully curated MCQs!

Phylogenetic Methods and Programs MCQs | Page 5 of 10

Discover more Topics under Bioinformatics

Q41.
Which of the following is incorrect statement about Character-based methods?

a.

They are also called discrete methods

b.

They are based directly on the sequence characters rather than on pairwise distances

c.

They doesn’t count mutational events accumulated on the sequences

d.

They may avoid the loss of information when characters are converted to distances

Discuss
Answer: (c).They doesn’t count mutational events accumulated on the sequences
Q42.
Which of the following is incorrect statement about Maximum Parsimony Method?

a.

By cutting off the unnecessary variables, model development may become difficult, and there may be more chances of introducing inconsistencies, ambiguities, and redundancies, hence, the name Occam’s razor

b.

In dealing with problems that may have an infinite number of possible solutions, choosing the simplest model may help to ‘cut off’ those variables that are not really necessary to explain the phenomenon

c.

This method chooses a tree that has the fewest evolutionary changes or shortest overall branch lengths

d.

It is based on a principle related to a medieval philosophy called Occam’s razor

Discuss
Answer: (a).By cutting off the unnecessary variables, model development may become difficult, and there may be more chances of introducing inconsistencies, ambiguities, and redundancies, hence, the name Occam’s razor
Q43.
Which of the following is incorrect statement about Building Work of MP tree?

a.

It works by searching for all possible tree topologies and reconstructing ancestral sequences that require the minimum number of changes to evolve to the current sequences

b.

Other than informative sites are non-informative, which are constant sites or sites that have changes occurring only once

c.

Informative sites are the ones that can often be explained by a unique tree topology

d.

Constant sites have the same state in all taxa and are quite useful in evaluating the various topologies

Discuss
Answer: (d).Constant sites have the same state in all taxa and are quite useful in evaluating the various topologies
Q44.
Because these ancestral character states are not known directly, multiple possible solutions may exist. In this case, the parsimony principle applies to choose the character states that result in a minimum number of substitutions.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q45.
The unweighted method treats all mutations as equivalent.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q46.
Which of the following is incorrect statement about Tree-Searching Methods?

a.

The choice of the first three taxa can be random

b.

Parsimony method examines all possible tree topologies to find the maximally parsimonious tree

c.

It starts by building a three taxa unrooted tree, for which only one topology is available

d.

This is different than exhaustive search method

Discuss
Answer: (d).This is different than exhaustive search method
Q47.
Which of the following is incorrect statement about branch-and-bound?

a.

It uses a shortcut to find an MP tree

b.

It establishes an upper limit (or upper bound) for the number of allowed sequence variations

c.

It solely uses UPGMA method

d.

It starts by building a distance tree for all taxa involved

Discuss
Answer: (c).It solely uses UPGMA method
Q48.
The branch-and-bound method starts building trees in a similar way as in the exhaustive method.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q49.
When the number of taxa exceeds twenty, even the branch-and-bound method becomes computationally unfeasible.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q50.
In a heuristic tree search, only a small subset of all possible trees is examined.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Page 5 of 10