6.5 Adult Cell Cloning Flashcards
1
Q
What year was Dolly the Sheep produced by adult cell cloning?
A
1997
2
Q
Name 2 advantages to adult cell cloning
A
- cloning can save animals from extinction
- development of cloned animals which have been genetically engineered to produce valuable proteins in their milk, have been used in medicines
3
Q
Name 6 disadvantages of adult cell cloning
A
- concerns about ethics of cloning
- cloning limits the variation in a population, limits the gene pool
- concerns about using the technology to clone humans in the future
- expensive work
- skilled and difficult technique
- takes a lot of time
4
Q
Why are people concerned about the ethics of cloning?
A
The egg nucleus that they replaced had the potential for life and they killed it
5
Q
Why is the fact that adult cell cloning limits the gene pool a bad thing?
A
Can be a problem for natural selection if the environment changes
6
Q
What is the process for adult cell cloning
A
- Replace nucleus of egg cell with nucleus of an adult cell from the animal you want to clone
- The new cell gets an electric shock to cause it to start to divide into an embryo, which is genetically identical to the adult cell
- When the embryo develops, it is inserted into the womb of the host animal, given birth to and is a clone of the desired animal
7
Q
Name the 2 cells needed in adult cell cloning
A
An adult cell and an egg cell
