Dolly: First Mammal Cloned

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Presentation transcript:

Dolly: First Mammal Cloned Dolly was born Feb. 1997 First mammal cloned from an adult cell

What is a clone? A clone is GENETICALLY IDENTICAL to it’s parent cell

3 steps to clone: a sheep for each step 1. REMOVE SOMATIC (BODY) CELL FROM AN ADULT SHEEP 2. REMOVE AN EGG CELL FROM AN ADULT SHEEP AND REMOVE THE NUCLEUS 3. COMBINE THE BODY CELL AND THE EGG CELL, AND IMPLANT IT IN A SURROGATE

STEP # 1: REMOVE SOMATIC CELL A body cell (AKA as SOMATIC cell) from the mammary gland of a female sheep is taken The body cell will determine what the organism will look like because we will keep its nucleus

STEP # 2: SHEEP # 2 Obtain egg cell and remove nucleus An egg cell from a different female sheep and remove its nuclues Body cell + Egg cell = an embryo in a test tube

will the baby sheep that is born look like its surrogate? step # 3: sheep # 3 Embryo is implanted in a surrogate mother sheep will the baby sheep that is born look like its surrogate?

what will the baby sheep look like if the somatic cell is from a white faced sheep?...

Double Trouble