Just a question about the trp operon according to VCAA standards. Essentially, in my Biology 3/4 textbook, attenuation is outlined without the use of the 1, 2, 3, and 4 regions of the leader region. However, in many other resources, attenuation is outlined with the use of the 1, 2, 3, and 4 regions of the leader region. I am just wondering which outline would be correct to use.

usernotfound changed the title to Biology 3/4 Question - trp operon .

It is completely fine to refer to the regions of the leader sequence that hybridise to form either a terminator hairpin (3-4) or an anti-terminator hairpin (2-3)

However, VCAA has explicitly outlined in the biology FAQ that students are not expected to know about specific regions of the leader sequence.

Students do not need to know which specific segments of the leader region are paired to allow each hairpin loop to form.

    charl Thank you for answering! So, the other way is also completely fine as well? The outline without the regions that is.

        usernotfound
        Yeah both are fine on the external exam - might want to clarify with your teacher though because at the end of the day they mark your SACs not VCAA.

          Write a Reply...