Which of the Following Statements is True Regarding Cloning Techniques

Question

Which of the following statements is true regarding cloning techniques?  
A) Embryo splitting results in offspring that are genetically identical to their parents.
B) Reproductive cloning always involves the transfer of an animal's nucleus from a body cell to an egg cell.
C) Early clones such as Dolly were smaller and acted differently from normal sheep.
D) Somatic cell nuclear transfer results in offspring that are genetically identical to their parent.
E) Clones can only be made from cells of live, fertile animals.

Accepted Answer

Somatic cell nuclear transfer involves transferring a somatic cell nucleus to an egg cell, resulting in offspring that are genetically identical to their parent. Embryo splitting also results in genetically identical offspring, but not to the same extent as somatic cell nuclear transfer. Reproductive cloning can involve the transfer of a nucleus from a body cell to an egg cell, but it is not always necessary. The size and behavior of early clones, such as Dolly, were not significantly different from normal animals. Clones can be made from cells of both living and deceased animals.