Option 1 states that the scenes in the cave paintings at Ajanta have no dividing frame and blend into each other. This means that there are no clear boundaries between different scenes and they flow seamlessly into each other. This is a correct statement and is one of the notable features of the cave paintings at Ajanta.

Option 2 states that the scenes in the cave paintings at Ajanta are both religious and secular in nature. This means that the paintings depict not only religious themes but also everyday life scenes. This is also a correct statement and is one of the reasons why the cave paintings at Ajanta are considered significant.

Option 3 states that the influence of Gandhara art is seen in the cave paintings at Ajanta. This statement is not correct. The cave paintings at Ajanta primarily showcase indigenous Indian art styles and do not exhibit the influence of Gandhara art, which was prevalent in the northwestern region of the Indian subcontinent.

Option 4 states that the scenes in the cave paintings at Ajanta mostly depict tales from Jatakas. Jatakas are stories about the previous lives of Buddha. This is a correct statement and is one of the main themes depicted in the cave paintings at Ajanta.

Therefore, the correct answer is option 3.