Self Assessment Answer # 4
for Lesson 5

by Dr Jamie Love Creative Commons Licence 2002 - 2005


Each child will be 100% identical to the other. Identical twins have the exact same genetic materials. They started off as the same zygote, which was made from the one single sperm and one single egg. After the first division the cells drifted apart but they have the exact genetic make up so they will pass that identical genetic material to all its descendent cells through mitosis.

Each twin will be 50% (half) identical to its mother and 50 % (half) identical to its father. Just like any child would be.

Each twin will be 25% (a quarter) identical to its grandparents. Just like any child would be.


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