If a fetus's spine develops before its fingernails, this represents proximodistal development, characterized by

Answer;

-Development from the head down.

If a fetus's spine develops before its fingernails, this represents proximodistal development, characterized by development from the head down.

Explanation;

-Proximodistal development is the progression of motor development radiating from the center of an organism to the periphery. The classic example is a child learning to move her shoulders before learning to control fine finger movement.

-Proximodistal development refers to growth and development that occurs from the head down. For example; an infant can use their arms (gross motor skills) to begin to reach for a toy before they can properly use their fingers (fine motor skills) to pick up the toy.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.