B is the correct answer because none of this that you put are testable.
Amino acids are joined by peptide bonds in a polypeptide chain. A peptide bond is one in which the molecules of a carboxyl react with the amino group of another molecule. A molecule of water is then formed and release, leaving the functinal groups to bond together and form a polypeptide chain.
Embryonic stem cells can be grown relatively easily in culture. Adult stem cells are rare in mature tissues, so isolating these cells from an adult tissue is challenging, and methods to expand their numbers in cell culture<span> have not yet been worked out. This is an important distinction, as large numbers of cells are needed for stem cell replacement therapies.</span>
Answer:
Genetically, you actually carry more of your mother's genes than your father's. That's because of little organelles that live within your cells, the mitochondria, which you only receive from your mother.
While women do inherit 50% of their DNA from each parent, men inherit about 51% from their mother and only 49% from their father.
Explanation:
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