Whereas, female offsprings inherit X chromosome ( from each parent). As per the question, family has Y linked disease that affects father. Thus, there will be 100% chances of inheriting this disease by the male offspring.
In natural selection, genotype variations that will increase the chance of survival and reproduction of some organism are preserved and will be inherited. If there is no variation, then all individuals have the same chance to survive and nothing will be particularly selected.
Through heat and pressure
Answer:
The mitotic spindle is a microtubules-based bipolar structure that segregates the chromosomes in mitosis
D, because it it provides the body with nutrition to help the muscles and other parts function