EXERCISE 1 [ ORF VERSUS GENES]

1.     In our original sequenced DNA, the following ORFs were predicted:

(a)  What is an ORF and how different is it from a gene coding region?                        (2)

(b)  Which ORF is most probably the gene-coding region? Circle it.                   (1)

(c)  How long is this open reading frame?_________________                          (1)

(d)  In which frame was this most probable ORF found?______________        (1)

(e)  Predict the length of the protein that would be coded by this ORF_________(1)

2.     The 3D structure of the resulting gene product looks like this. Describe the protein.

 (7)