Sex of child in humans is determined by the males. Males have XX chromosomes while females have XY chromosomes. Hence, if:-
● The male’s X chromosomes combines the female’s X chromosomes, the mother gives birth to a girl
● The male’s Y chromosome combines with the female’s X chromosome, the mother gives birth to a boy
Only variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?
How is the equal genetic contribution of male and female parents ensured in the progeny?
Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?
What evidence do we have for the origin of life from inanimate matter?
Explain the importance of fossils in deciding evolutionary relationships.