A gel electrophoresis is performed, but when the gel imager is used, no bands ap

Question

A gel electrophoresis is performed, but when the gel imager is used, no bands appear. The researcher might have forgotten to: (list all that apply):
  a. add electric current.

b. add buffer solution.

  c. blot with a membrane.

d. include DNA dye.

e. include an RNA probe.

2.

In order for a sequence to be classified as finished, it must have (select all that apply):
____ a. no more that 1% error in 10,000 nucleotides.
____ b. all transposon insertions included.
____ c. the sequences in the correct order.
____ d. minimal gaps.
____ e. a previously sequenced neighbor.

3.

Which components are required in plasmids? (select all that apply)
a. A selectable marker, usually antibiotic resistance
b.  A bacterial artificial chromosome
c. One or more unique restriction sites where foreign DNA can be added
d. An origin of replication to allow it to replicate in E. coli independently of the host   chromosome

4.

Which of the following are potential advantages of using transgenic plants for vaccine production? (select all that apply)
____a. low cost
____b. quick generation of vaccines
____c. future potential to generate edible plants to deliver vaccines orally
d. large scale

Explanation / Answer

1 ans b .add buffer solution. 2 ans b and c, 3)ans a,b,c,d, 4 ans all four, large scale and quick generation mainly.

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