See hint motor neuron degeneration occurs in several diseases and leads to loss of muscle control. one form of motor neuron degeneration was found to have defects in retrograde transport (backward transport to cell body, in blue below) that were caused by mutations in a gene that codes for a particular protein. what protein, when mutated, would inhibit backward, but not outward, transport along axon microtubules

Dynein

Explanation:

The correct answer of this question is Dynein,

Dynein, when mutated inhibit backward transport in the axon microtubule  since Dynein is the cytoplasmic protein responsible for backward transport in the axon microtubule.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."