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TLS Online TPP Program

#Question id: 2121

Which of the following membrane activities requires energy from ATP hydrolysis?

#Section 2: General Biology

  1. facilitated diffusion of chloride ions across the membrane through a chloride channel

  2. movement of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular fluid

  3. movement of glucose molecules into a bacterial cell from a medium containing a higher concentration of glucose than inside the cell

  4. movement of carbon dioxide out of a paramecium

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TLS Online TPP Program

#Question id: 14134

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

PAM stands for ___
TLS Online TPP Program

#Question id: 14135

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

Which of the following statement is correct about PAM matrix? 
TLS Online TPP Program

#Question id: 14136

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

Which of the following statement is incorrect about global alignment? 
(A) Global alignment is based on the Needleman–Wunsch algorithm.
(B) In Global alignment algorithm, an optimal alignment is obtained over the entire lengths of the two sequences.
(C) It is only suitable for aligning two closely related sequences that are of the same length.
(D) GAP is a web-based pairwise global alignment program.
TLS Online TPP Program

#Question id: 14137

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

Consider the following alignment of two DNA sequences:
                            AGTAAC
                            AA_ _AC

Assuming an affine gap scoring scheme of an identity matrix for substitution, a gap initiation penalty of 1 and a gap extension penalty of 0.1, the score of the alignment is _________
TLS Online TPP Program

#Question id: 14138

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

BLAST uses heuristics to align a query sequence with all sequences in a database. 
Reason(R): BLASTX uses protein sequences as queries to search against a protein sequence database.
TLS Online TPP Program

#Question id: 14139

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

Which of the following statement is incorrect about sequence similarity and sequence identity?