Computational Tools In Biotechnology - Study Mode

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[#11] An example of a program for constructing a phylogenetic tree

(A) PHYLIN

(B) Phrap

(C) ProDom

(D) PHDsec

Correct Answer

(A) PHYLIN

[#12] Amino acid sequences of cytochrome c and ribulose 5-phosphate epimerase from 40 organisms were chosen and phylogenetic trees were obtained for each of these two protein families. Determine the correctness or otherwise of the following Assertion [A] and the Reason [R] . Assertion [A]: The two trees will not be identical. Reason [R]: The nature and frequency of mutations in the two families are different.

(A) Both [A] and [R] are true and [R] is the correct reason for [A]

(B) Both [A] and [R] are true but [R] is not the correct reason for [A]

(C) Both [A] and [R] are false

(D) [A] is false but [R] is true

Correct Answer

(A) Both [A] and [R] are true and [R] is the correct reason for [A]

[#13] Match the items in Group I with an appropriate description in Group II . Group I Group II P. UPGMA 1. Protein sequence database Q. CLUSTAL 2. Phylogenetic analysis R. SWISS-PROT 3. 3-D structure visualization S. RasMol 4. Multiple sequence alignment

(A) P-4, Q-1, R-2, S-3

(B) P-2, Q-4, R-1, S-3

(C) P-2, Q-3, R-1, S-4

(D) P-2, Q-1, R-4, S-3

Correct Answer

(B) P-2, Q-4, R-1, S-3

[#14] Number of unrooted trees in a phylogeny of five sequences is

(A) 3

(B) 15

(C) 105

(D) 945

Correct Answer

(B) 15

[#15] Which one of these is a nucleotide sequence data base?

(A) TREMBL

(B) EMBL

(C) SWISS

(D) PROSITE

Correct Answer

(B) EMBL