Chapter 10

Ultimately, is it the paternal or maternal gamete that delivers the sex- determining chromosome? Describe the process.

Mammals have now been cloned by scientists ( think of Dolly the sheep). Suppose that half the world's human births were achieved through cloning. How would our world be different?

All the bananas we eat come from trees that are produced through "cuttings" - a stem from an existing tree is planted in the ground, resulting in a new tree. Thus, each tree is a clone of another Why would growers find it advantageous to produce an enormous series of identical clones, rather than using trees that reproduce sexually?