Question

DNA Electrophoresis

Our Gel: Information about the gel in Figure 1: • Run Time: 105 minutes. • The DNA sample contained 13 different sizes of DNA molecules (Table 1). The apparatus delivered a potential difference of 80 Volts across the gel. The distance between the electrodes was 19 cm. • This Voltage difference creates an electric field of 421 V/m (421 N/C)

a) Find terminal velocity in um/s

b)  Draw a FBD (free-body diagram) for the DNA molecule in the gel

Answer 1

Bound Base Pain Distance Shane Distance Javeled inting Tethinal velnano (unlrec lex 3x104 loooo - Time=losmin Sxbo 6300sec 33 8000 6000 Sooo 4000 3.70 3-90 $30 470 5.23 5.87 6.19 6-82 7.62 8.09 8.57 3.70x104 3-9x104 4.30x104 4 80x104 5.10X1Y 3000 4.8 uni 2009 2500 2000 1500 looo 750 5.10 5.40 5.90 5. 40x104 9.36 5.90x104 6.50x104 6.50 6.90 7.40 10.31 6.90x104 10.95 7.40X10 8.ox10 | 12.69 500 11.74 13 3 Free Body diagram Doag force = bv ana Malecule Electric Force - & E Fnet = q E-bv =ma. Inet-o Vaa E - terminal Velocity