Practice Questions

TLS Online TPP Program

#Question id: 11195

Action potentials move along axons ________.

#Part-B Specialized Branches in Biotechnology

more slowly in axons of large than in small diameter
by activating the sodium-potassium "pump" at each point along the axonal membrane
more rapidly in myelinated than in unmyelinated axons
by reversing the concentration gradients for sodium and potassium ions

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TLS Online TPP Program

#Question id: 14137

#Part-B Specialized Branches in Biotechnology

Consider the following alignment of two DNA sequences:

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: 14137

#Part-A Aptitude & General Biotechnology

Consider the following alignment of two DNA sequences:

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

#Part-B Specialized Branches 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: 14138

#Part-A Aptitude & General 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

#Part-B Specialized Branches in Biotechnology

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

TLS Online TPP Program

#Question id: 14139

#Part-A Aptitude & General Biotechnology

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