Elongation always occurs at the carboxyl end of the fat, so in effect what happens is that the potential desaturation positions change as we elongate the fat. By alternating elongation with desaturation 4, 5, 6, and 9, we can get polyunsaturated fats of double-bonds three carbons apart.
To apply for a study permit on or after June 1, 2014, you will need to have a letter of acceptance from a designated learning institution. 1  Each province and territory in Canada is responsible for designating schools at the post-secondary level that may enrol international students on or after June 1.f you are no longer a student but wish to remain in Canada as a visitor, please see Visit Canada. Note: Under the new rules, your study permit will become invalid 90 days after you have completed your study program.
If you wish to take a course that is longer than six (6) months, you will need a study permit in addition to your temporary resident permit. To apply for a study permit, use the application kit Application to Change Conditions, Extend my Stay or Remain in Canada as a Student (IMM 5709) (PDF, 344 KB) .ou have to make sure that you have legal status to remain in Canada. You should apply to maintain your legal status in Canada while your application for permanent residence is in process. You have legal status for the period of time indicated on your temporary resident permit.