Answer:
9/16 A_B_ White colour, axial flower
3/16 A_bb White colour, terminal flower
3/16 aaB_ Yellow colour, axial flower
1/16 aabb Yellow colour, terminal flower
Explanation:
Let the flower colour allele be represented by A and the flower position by B. The dominant white colour would be A while the alternate version (the yellow colour) would be a. Also, the dominant axial flower position would be B while the alternate terminal position would be b.
The Punnet's square result of crossing two plants that are heterozygous for both traits is as in the attached image.
AaBb x AaBb
Possible Offspring
9/16 A_B_ White colour, axial flower
3/16 A_bb White colour, terminal flower
3/16 aaB_ Yellow colour, axial flower
1/16 aabb Yellow colour, terminal flower