1. Incontinentia pigmenti is an X-linked dominant disorder characterized by skin abnormalities that begin in childhood, usually a blistering rash which heals, followed by the development of harder skin growths. The skin may develop grey or brown patches which fade with time. Most XY and XX individuals affected with the disease do not survive to birth. Karla who XX has Incontinentia pigemnti, is planning on having children with Michael, who is XY and does not have this condition. What are the chances they will have a child with Incontinentia pigmenti? What is the sex chromosome composition of the affected children? Complete a Punnett square for this condition. Feel free to write out any explanation you might have as well.

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Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.