The smog constituent peroxyacetyl nitrate (PAN) dissociates into peroxyacetyl radicals and NO2(g) in a first order reaction with a half-life of 32 min. 

If the initial concentration of PAN in an air sample is 2.7×10¹⁵ molecules/L, what will be the concentration 2.24 h later?

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#Question id: 14133

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

The study of evolutionary relationships is known as

TLS Online TPP Program

#Question id: 14134

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

PAM stands for ___

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#Question id: 14135

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

Which of the following statement is correct about PAM matrix? 

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#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.