biology lab questions

 

2- why do we load DNA strands ( DNA fragments of known size ) in a garose gels ? 

 

3- what DNA fragments sizes would you expect if you forgot to include primers in your PCR reaction ? 

 

4- the larger the x^2 value .............. the p value assciated with it ( chi square test ) 

 

5- starting from one DNA molecule, how would you calculate the approximate number of DNA molecule after 25 cycle ( do not calculate the number just explain how ) 

 

6- why we use a loading dye for our DNA sample ? 

 

7- when using DNA electrophoresis, DNA fragments are separated from each other ..............  ( complete )