As a patch increases in size, the ratio of interior to edge increases
Indicate whether the statement is true or false
TRUE
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You are asked to participate in a clinical trial for a new drug that can activate telomerase. Which of the following is a likely risk of such a drug?
A. decreased capacity for tissue repair B. increased vulnerability to cancer C. premature aging D. decreased telomere length Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about telomeres and telomerase? Consider Possibilities · What other information is related to the question? Which information is most useful? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which statement about the fate of progenitor cells in Caenorhabditis elegans is not correct?
A. The fate of progenitor cells is determined by their proximity to the anchor cell, which secretes epidermal growth factor. B. Epidermal growth factor binds and activates a transmembrane receptor protein in the cell nearest to the anchor cell. C. In the cell closest to the anchor cell, genes for differentiation into a type 1 cell are activated by epidermal growth factor binding to its receptor. D. Following epidermal growth factor receptor activation, the cell closest to anchor cell inhibits adjacent cells from differentiating to type 1 cells. E. Differentiating into a type 2 cell occurs spontaneously without the need for special genes for type 2 differentiation.
If a dihybrid cross is begun with a P1 generation of a plant that produces smooth and yellow peas,
crossed with a plant that produces wrinkled green peas, the F2 plants will have either smooth yellow peas or wrinkled green peas. Indicate whether the statement is true or false.
A protein is tightly associated with the plasma membrane and it can be isolated by treating the membrane with a strong detergent. What type of membrane protein is this?
A. either an integral or a peripheral membrane protein B. a peripheral membrane protein C. neither an integral nor a peripheral membrane protein D. an integral membrane protein