A zygote (single diploid cell) divides over a period of three week time period and transforms into a larva. An embryo goes through the phases of stages like cleavage, gastrulation, neurulation and organogenesis. A larva transforms through the process of metamorphosis to develop into an adult drastic changes.
The entire process of development is as follows – .
The answer would be D. Huntington's disease presents symptoms in humans after many have already reproduced; therefore, they are unaware that they passed on Huntington's disease.
