Explore topic-wise MCQs in Bioinformatics.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Bioinformatics knowledge and support exam preparation. Choose a topic below to get started.

1.

Molecular clock is an assumption by which molecular sequences evolve at varying rates.

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

Because there is no indication of which node represents an ancestor, there is no direction of an evolutionary path in an unrooted tree.

A. True
B. False
Answer» B. False
Discussion
3.

The descriptions of morphological traits are often _____ which are due to _____

A. ambiguous, multiple genetic factors
B. lucid, more than one genetic factors
C. clear, multiple genetic factors
D. ambiguous, one or two genetic factors
Answer» B. lucid, more than one genetic factors
Discussion
4.

BECAUSE_THERE_IS_NO_INDICATION_OF_WHICH_NODE_REPRESENTS_AN_ANCESTOR,_THERE_IS_NO_DIRECTION_OF_AN_EVOLUTIONARY_PATH_IN_AN_UNROOTED_TREE.?$

A. True
B. False
Answer» B. False
Discussion
5.

Molecular_clock_is_an_assumption_by_which_molecular_sequences_evolve_at_varying_rates.$

A. True
B. False
Answer» C.
Discussion
6.

Which of the following is incorrect regarding the terminologies of phylogenetics?

A. The connecting point where two adjacent branches join is called a node
B. Node represents an inferred ancestor of extant taxa
C. At the tips of the branches are long lost species or sequences
D. The lines in the tree are called branches
Answer» D. The lines in the tree are called branches
Discussion
7.

Building phylogenetic tree involves bifurcation and multifurcation.

A. True
B. False
Answer» B. False
Discussion
8.

To use molecular data to reconstruct evolutionary history requires making a number of reasonable assumptions. Which of the following is incorrect about it?

A. The molecular sequences used in phylogenetic construction are homologous
B. The molecular sequences used in phylogenetic construction share a common origin
C. Phylogenetic divergence cannot be bifurcating
D. Parent branch splits into two daughter branches at any given point.
Answer» D. Parent branch splits into two daughter branches at any given point.
Discussion
9.

Which of the following is incorrect regarding the advantages of Molecular data for phylogenetics study?

A. They are more numerous than fossil records
B. They are easier to obtain as compared to fossil records
C. Sampling bias is involved
D. More clear-cut and robust phylogenetic trees can be constructed with the molecular data
Answer» D. More clear-cut and robust phylogenetic trees can be constructed with the molecular data
Discussion
10.

The descriptions of morphological traits are often_____ which are due to _____

A. ambiguous, multiple genetic factors
B. lucid, more than one genetic factors
C. clear, multiple genetic factors
D. ambiguous, one or two genetic factors
Answer» B. lucid, more than one genetic factors
Discussion
11.

Phylogenetics is the study of the evolutionary history of living organisms using treelike diagrams to represent pedigrees of these organisms.

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