The sequence of nitrogenous bases in mrna is a. identical to the template strand of dna on which it forms. b. complementary to the template strand of dna on which it forms. c. determined by the sequence of bases in trna d. complementary to the sequence of bases found in the ribosome.

B. complementary to the template strand of DNA on which it forms.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.