Cloning History Fact

Did you know that in 1902 German embryologist Hans Spemann split a 2-celled salamander embryo and each cell grew to adulthood, providing proof that early embryo cells carry necessary genetic information, this finally disproved Weismann's 1885 theory that the amount of genetic information in cells decreases with each division.

Cloning History Fact

Did you know in 1902 that Walter Sutton published "On the Morphology of the Chromosome Group in Brachyotola magna", hypothesizing that chromosomes carry the inheritance and that they occur in distinct pairs within a cell's nucleus. Sutton also argued that how chromosomes act when sex cells divide was the basis for the Mendelian Law of Heredity.

Cloning History Fact

Did you know in 1901 Hans Spemann split a 2-cell newt embryo into two parts, resulting in the development of two complete larvae.

Cloning History Fact

Did you know that in 1894 Hans Dreisch isolated blastomeres from 2- and 4-cell sea urchin embryos and observed their development into small larvae. These experiments were regarded as refutations of the Weismann-Roux theory.

Cloning History Fact

Did you know in 1888, Wilhelm Roux tested the germ plasm theory for the first time., one cell of a 2-cell frog embryo was destroyed with a hot needle; the result was a half-embryo, supporting Weismann's theory.

Cloning history fact

Did you know that in 1885 August Weismann a professor of zoology and comparative anatomy at the University of Freiberg, theorized that the genetic information of a cell would diminish as the cell went through differentiation. That was a discovery that helped create a foundation for cloning in the future.

Human Cloning Questions

I have recieved an e-mail I would like your assitance with. If you would like please take your time and answer the following questions, you can answer them on the board or e-mail me and we can discuss them. They are very good topics concerning human cloning. Thank you.

1. What effect(s) could cloning have on our society

2. How could cloning work in our world today?

3. When did cloning experiments start? Animal and Human.

4. Is it possible to clone specific body parts such as a heart, liver, or a kidney?

5. Why are the statistics of having a successful clone not high? Why do the clones die so soon?

6. What is the most important problem facing cloning today?

7. Why do you think cloning is such a sensitive topic and people are unsure about it?