1. Some animals, such as the Javan rhinoceros (Rhinoceros sondaicus), are very close to extinction.

A possible method of increasing the number of Javan rhinos would be to clone existing animals. The passage below describes the process of cloning.

Complete the passage by writing a suitable word on each dotted line.

A nucleus is taken from a body ........................ of an adult Javan rhino. This nucleus is put into an enucleated ........................ cell. The cell is given a mild electric shock to help it divide by a type of cell division called ........................ . A ball of cells is produced called an ........................ . The ball of cells is placed into the ........................ of a female rhino.

This female rhino is called a ........................ mother.