cloning

Question 1

cloning defined

Answer 1

A clone is an organism produced by asexual reproduction that is genetically identical to its parent.

Question 2

the first successful cloning of a mammal occured when

Answer 2

1996

Question 3

it involved cells from

Answer 3

adult animals

Question 4

Step 1

Answer 4

The DNA was removed from an unfertilized egg cell of one sheep.

Question 5

step 2

Answer 5

An udder cell was removed from a different sheep.

Question 6

step 3

Answer 6

the cells were fused with an electric shock

Question 7

step 4

Answer 7

the cells was allowed to divided in vitro

Question 8

step 5

Answer 8

the cell was implanted into a surrogate mother

Question 9

step 6

Answer 9

Dolly was born on July 5, 1996. She was the only egg that survived of 277 tries. She was genetically identical to the sheep that provided the udder cell.

Question 10

potential uses of cloning

Answer 10

Producing animals with particularly good traits (e.g. good milk-producing cows).
Transplanted organs would not be rejected by own body.