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TLS Online TPP Program

#Question id: 11204

Why do Na+ ions enter the cell when voltage-gated Na+ channels are opened in neurons?

#Part-B Specialized Branches in Biotechnology

  1. because the Na+ concentration is much lower outside the cell than it is inside

  2. because the Na+ ions are actively transported by the sodium-potassium pump into the cell

  3. because the Na+ concentration is much higher outside the cell than it is inside, and the Na+ ions are attracted to the negatively charged interior

  4. because the Na+ concentration is much higher outside the cell than it is inside, and the Na+ ions are actively transported by the sodium-potassium pump into the cell

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TLS Online TPP Program

#Question id: 22918

#Part-B Specialized Branches in Biotechnology

Southern blotting is
TLS Online TPP Program

#Question id: 7500

#Part-A Aptitude & General Biotechnology

A man is standing on a railway bridge which is 180 m long. He finds that a train crosses the bridge in 20 seconds but himself in 8 seconds. Find the length of the train and its speed.
TLS Online TPP Program

#Question id: 14140

#Part-A Aptitude & General Biotechnology

In sequence alignment by BLAST, each word from query sequence is typically _______ residues for protein sequences and _______ residues for DNA sequences.
TLS Online TPP Program

#Question id: 5750

#Part-A Aptitude & General Biotechnology

 type of microorganism that can exist on minimal medium
TLS Online TPP Program

#Question id: 4320

#Part-A Aptitude & General Biotechnology

Forms of the Ras protein found in tumors usually cause which of the following events to occur?