Which statement describes a characteristic of a spiral galaxy? a. it is shaped like a pinwheel
b. it has no new star formation
c. it is made only of gases
d. it is smaller than other types of galaxies

i think the answer is gold im not entirely sure

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.