In which situation are the phenotypes of F2 offspring expected to follow the ratio of 9:3:3:1 a. A monohybrid cross for 2 unlinked traits b. A monohybrid cross for 2 closely linked traits c. A dihybrid cross for 2 unlinked traits d. A dihybrid cross for 2 closely linked traits

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

Which direction does the energy flow in this energy pyramid ?