Cloning

The video tutorial explains cloning, highlighting natural occurrences in bacteria and plants, and human reproduction through identical twins. It discusses laboratory cloning advancements, enabling genetic copies of plants and animals. Two main techniques are covered: embryonic cloning, where embryos are divided to create identical offspring, and fusion cell cloning, involving nucleus transfer to produce donor-identical offspring. Clones are genetically identical, with differences arising from environmental factors.

What is a natural example of cloning in humans?

• Identical twins

• Quadruplets

• Fraternal twins

• Triplets

What has recent progress in biology enabled scientists to do in the lab?

• Create new species

• Develop new vaccines

• Perform genetic mutations

• Clone exact genetic copies of organisms

In embryonic cloning, what happens to the cells of the embryo?

• They are separated to produce multiple embryos

• They are used to create a new species

• They are fused together

• They are destroyed

What is the role of the donor nucleus in fusion cell cloning?

• It is used to create a new species

• It is discarded

• It is used to fertilize the egg

• It is inserted into an empty egg cell

What causes differences between clones?

• Environmental factors

• Genetic mutations

• Different DNA sequences

• Random chance