Relationship between genetic variation and common ancestor. *

genetic variation deals with the way of predicting the sex of a baby while in the belly through ancestrial diagrams and knowledge which is not believed in the new age

so the both of them were used in the old age to determine the sex of a baby using weird methods

the answer is d. chordata

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.