1: Which of the following statements is true for both embryonic stem cells AND a

Question

1: Which of the following statements is true for both embryonic stem cells AND adult stem cells?

a)     both transcribe every gene in the genome

b)     both can differentiate into many other cell types

c)     both of these cell types are found in every tissue in the body

d)     both can differentiate into every other cell type found in the body

2. Pick one of the following evolutionary adaptations -- hairlessness, brain size or bipedalism -- and explain why / how dramatic climate change in the African Rift Valley affected the evolution of this trait. be specific

3. explain why differences in skin pigmentation in human populations can be explained by the theory of evolution and natural selection. Be sure to discuss BOTH the evolutionary implications / benefits of light skin pigmentation AND dark skin pigmentation.

4: The biggest danger related to the overuse of antibiotics is:

a)     beef prices will increase

b)     the total number of antibioitcs that can be used to treat humans will decrease

c)     production of antibiotic resistant viruses

d)     loss of salmon farming

Explanation / Answer

b)     both can differentiate into many other cell types

Embryonic stem cells are considered to be pluripotent so they can differentiate into any other cell type and adult stem cells are totipotent and can differentiate into other cell type of the organ or region they are found in.

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