<span>One in every billion nucleotides replicated will be prone to mutation.</span>
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Estrogen is made out of steroid hormones
MRNA is needed in the cells because it directs the synthesis of proteins which is found in the cytoplasm. It is a molecule that carries the message contained within DNA to the ribosome. The Proteins are assembled on the ribosomes using the mRNA nucleotide sequence as a guide.
These are the following answers to the items
cell engulfs molecules in cell "drinking": pinocytosis<span>
molecules helped by protein; move insoluble molecules across plasma membrane: </span>facilitated diffusion
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molecules move in and out freely from high to low concentration: </span>passive diffusion
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cell engulfs microorganisms in cell "eating": </span>phagocytosis<span>
molecules "pumped" in or out from low to high concentration: </span>active transport<span>
oxygen, carbon dioxide: </span>passive diffusion<span>
transports sodium, potassium: </span>active transport<span>
transports glucose, amino acids: </span>pinocytosis
