Can an object with constant acceleration reverse its direction of travel? can it reverse its direction twice? in each case, explain and give an example.

If an object is moving under constant acceleration then it is possible to reverse its direction once

Like when we throw an object upwards under the action of constant gravity then the object first moves upwards then stops after reaching maximum height and reverse its direction to move back.

now for the next case it is not possible to reverse the direction twice when an object moves under constant acceleration

so when once object reverse it direction then after that it comes in the direction of acceleration and then continue in the same direction for whole motion

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).