Across
- 6. Who published a book that includes the selective breeding of pigeons?
- 7. A mule is a hybrid created when a horse breeds with a what?
- 8. Charles Darwin's book was called the 'Origins of ...' what?
- 9. DNA structure was proposed by Watson and ____________ in 1953?
- 10. What type of animal was the first to use a surrogate mother?
Down
- 1. What is the name of the first cloned animal (which was a sheep)?
- 2. The first test-tube (in vitro) baby was born in 19________.
- 3. What type of organism was used to make insulin for the first time in 1979?
- 4. What was the first animal to be selectively bred?
- 5. Which baby animals made history as the first to be born through embryo splitting?