Contrast the visual deficits that would result from someone having a mutation in the gene for rhodopsin versus a mutation in one of the genes for a photopsin
What will be an ideal response?
A mutation to rhodopsin gene would influence the rod system, and night vision (scotopic vision) would be impaired (less sensitive eyes). A typical result of a defective photopsin gene is red-green colorblindnessâ€"there is still effective, photopic vision of form and shape and some colors, but some color discrimination is impaired.
You might also like to view...
Each of the following is an example of a nonmembranous organelle except
A) lysosomes. B) cilia. C) centrioles. D) ribosomes. E) cytoskeleton.
Answer the following statements true (T) or false (F)
1. Acetylcholine is the neurotransmitter released in the neuromuscular junction. 2. The midbrain is an enlarged upward extension of the spinal cord just inside the cranial cavity. 3. The hypothalamus releases chemicals that stimulate the release of hormones by the posterior pituitary gland. 4. Islands of gray matter in the white matter of the cerebrum are called basal ganglia. 5. The dura mater, pia mater, and arachnoid are layers of the meninges.
Ciliary muscles are considered voluntary, skeletal muscle
Indicate whether the statement is true or false
What is found in the lateral gray horns of the spinal cord?
A. The cell bodies of somatic sensory neurons B. The cell bodies of somatic motor neurons C. The cell bodies of sensory neurons D. The cell bodies of autonomic motor neurons