TLS Online TPP Program

#Question id: 11452


A given photon of light may trigger an action potential with thousands of times more energy because the signal strength is amplified by ________.

#SCPH28 | Zoology
  1. the receptor
  2. ion channels
  3. a signal transduction pathway
  4. triggering several receptors at once
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TLS Online TPP Program

#Question id: 9273

#SCPH06 I Botany

In the higher excited state, chlorophyll is extremely unstable; it rapidly gives up some of its energy to the surroundings as heat, and enters the lowest excited state, the excited chlorophyll has four alternative pathways for disposing of its available energy: fluorescence, Heat loss, energy transfer, photochemistry; all process takes place in which wavelength,

TLS Online TPP Program

#Question id: 2750

#SCPH05 I Biotechnology

Which of the following is true of histones?

TLS Online TPP Program

#Question id: 580

#SCPH05 I Biotechnology

In a first order chemical reaction, the velocity of the reaction is proportional to the ________, while in a zero order reaction, the velocity of the reaction is proportional to the ________.

TLS Online TPP Program

#Question id: 1647

#SCPH01 Biochemistry

A fragment antigen binding (Fab) fragment:

TLS Online TPP Program

#Question id: 13092

#SCPH05 I Biotechnology

To express a yeast gene in E. coli, your task is to design a strategy to insert the yeast gene into the bacterial plasmid. Below is a map of the area of the yeast genome surrounding the gene in which you are interested.
 
The distance between each tick mark placed on the line above is 100 bases in length
Below are the enzymes you can use, with their specific cut sites shown 5’-XXXXXX-3’ 3’-XXXXXX-5’
 
The plasmid is 5,000 bases long and the two farthest restriction enzyme sites are 200 bases apart. The plasmid has an ampicillin resistance gene somewhere on the plasmid distal from the restriction cut sites.
                              
Which two restriction enzymes would you use to design a way to get the insert into the vector if you had to use two enzymes simultaneously?