In the case of John Moore, whose excised spleen was used by UCLA researchers to establish patented cells lines and ultimately commercially valuable products, the California Supreme Court ruled in 1990 that _____
a. patients are entitled to property rights over cells or tissues removed from the body and used to develop commercial products
b. patients do not have property rights over cells or tissues removed from the body and used to develop commercial products
c. human cells and cell lines cannot be patented
d. organ donors cannot be compensated from the sale of human tissue
e. recombinant DNA technology is harmful
b
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Diatoms have a distinctive two-piece wall of silica called a frustule.
Answer the following statement true (T) or false (F)
If the surface area of a cell increases by a factor of 100, the volume of that cell will
A) remain the same. B) increase by a factor of 100. C) increase by a factor of 1000. D) increase by a factor of 10. E) decrease by a factor of 100.
Two outwardly dissimilar groups, the ____________ and the chordates, together with a few other small phyla, constitute the deuterostomes.
Fill in the blank(s) with the appropriate word(s).
Crossing-over is more likely to separate genes on a chromatid if they are
A. recessive genes. B. close together. C. dominant genes. D. far apart. E. mutated genes.