TLS Online TPP Program

#Question id: 2113


Why are lipids and proteins free to move laterally in membranes?

#SCPH28 | Zoology
  1. The interior of the membrane is filled with liquid water.

  2. Lipids and proteins repulse each other in the membrane.

  3. Hydrophilic portions of the lipids are in the interior of the membrane.

  4. There are only weak hydrophobic interactions in the interior of the membrane.

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TLS Online TPP Program

#Question id: 19653

#SCPH05 I Biotechnology

What happens when a mixture of acetylene and hydrogen is passed over heated Lindlar’s catalyst?

TLS Online TPP Program

#Question id: 11652

#SCPH06 I Botany

The sequence of changes initiated by disturbance is called succession, and the ultimate association of species achieved is called

TLS Online TPP Program

#Question id: 360

#SCPH28 | Zoology

Which of the following is considered to be a strong base (alkali)?

TLS Online TPP Program

#Question id: 5125

#SCPH01 Biochemistry

In above experiment in figure.A two differently positioned blastula cells are specified to become distinct muscle and neuronal cells.In figure.B when These two different blastula cells are placed together in culture. Following results are obtained according to step(1) and step(2). Which statement is correct about muscle cell commitment?

 

TLS Online TPP Program

#Question id: 13093

#SCPH05 I Biotechnology

You are studying a specific gene in yeast, and you want to express that 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.
                                    
You transform your ligation planned in 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, into bacteria and plate the bacteria on Petri plates containing ampicillin. (You actually transform six different ligation mixtures, which are described below, into six different populations of cells, and plate each transformation onto a different plate, because you want to do all of the correct controls.) The next day you come in to lab to look at how many colonies of bacteria are on each plate. You are really excited, because the number of colonies you see on each plate tells you that the entire procedure worked! Which of the three following patterns of number of colonies did you see in order to conclude that you had a successful transformation?
In this table, DV = digested vector. DYG = digested yeast genome.