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Bethany0323
25.01.2020 •
Biology
Can y’all give me a paragraph on stem cells. don’t make it sound tooo smart.
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Ответ:
They can be collected from an early embryo before the cells differentiate- these embryonic stem cells can form any type of human cell, organ or tissue. There are ethical concerns with this operation.
Stem cells can also be collected from adult bone marrow. It is a simple operation but can be painful. These stem cells mainly differentiate into blood cells, and they have been used for many years to treat leukaemia.
Ответ:
2/4
Explanation:
because the ratio off the offspring is 2 black pig : 2 white pig. so probability of white pig will be 2/4.