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TLS Online TPP Program

#Question id: 3313

Which one of the following statement is incorrect for the process of speciation?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Parapatric speciation may occur when, the population is continuous, population does not mate randomly due to long distance.

  2. Allopatric speciation may occur between geographically separated populations.

  3. Peripatric speciation is a mode of speciation in which a new species is formed from an geographically isolated population

  4. Sympatric speciation may also have been common in fish due to preferred microhabitat within same range

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TLS Online TPP Program

#Question id: 15137

#Section 6: Plant, Animal and Microbial Biotechnology

Most mitochondrial proteins however, are manufactured under the direction of the nucleus. Mitochondria reproduce by 
TLS Online TPP Program

#Question id: 15138

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the items in group 1 with an appropriate description in group 2.
Group 1                                                                Group 2
(P) SWISS PROT                                 (1) derived protein structure database 
(Q) Local alignment                          (2) protein sequence database
(R) CATH                                             (3) GAP
(S) Global alignment                        (4) Smith–Waterman algorithm
TLS Online TPP Program

#Question id: 15139

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which one of the following is NOT a structure or structurally derived database?
TLS Online TPP Program

#Question id: 15140

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Two types of pair-wise sequence alignment of the same hypothetical protein sequence fragments are illustrated in the figure below. Vertical bars between the sequences indicate the presence of identical amino acids. * symbols in Figure Y indicate residues not included in the alignment.





Which one of the following is correct?
TLS Online TPP Program

#Question id: 15141

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

An alignment of two protein sequences is given below:

Sequence A         A G A A C D E V I G
Sequence B         A G E Y C D A V I G
The similarity score (%) for the above alignment will be:
TLS Online TPP Program

#Question id: 15142

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Dot matrix analysis of the amino acid sequences of lambda phage cI (horizontal sequence) and phage P22 c2 (vertical sequence) repressors is shown below. Which one of the following is correct?