Beatrice was born without cone cells in her retina. What effect will this most likely have on her vision? She will be unable to see out of the side of her eyes. Her vision will be unaffected. She will be colorblind. She will be completely blind.

The answer is, she will be colour blind.

Explanation:

If cone cells are not present in a person's retina, they cannot see colours in the day.

Rods and Cones are photo receptors in human retina. Rods allow us to see during low light. they have low spatial acuity and do not mediate colour vision. If rods are not present, she would have night blindness.

Cones are capable of having colour vision. They are active at the higher light levels.

Rods and Cones are photo receptors, but with cones specifically, if they are not there then we would not be able to distinguish colours. This condition is referred to as colour blindness.