Which of the following can inhibit the uptake of iodide ions via Na/I symporter
a) Thiocynate (SCN-)
b) Perchlorate (ClO4-)
c) All of the above
d) None of the above
Ans: c) All of the above
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The precipitin test that is widely used for detecting antibodies against fungal infection is referred to as:
a. double immunodiffusion. b. counterimmunoelectrophoresis. c. particle agglutination. d. enzyme immunoassay.
How does diffusion limit size in cells?
a. Once a cell attains a particular size, the transport proteins in the cell membrane stop functioning and diffusion fails. b. The size of the cell dictates the size of lipids in the membrane. If the lipids become too large, diffusion becomes slower and the cells can starve. c. As cells increase in size, the surface-to-volume ratio decreases and diffusion becomes too inefficient to provide nutrients and waste disposal from the cell. d. Cells that are of a particular size, or greater, enter a state of torpor and growth slows until the cell shrinks again.
________ testing refers to the analysis of an individual's genetic material to determine predisposition to a particular health condition
Fill in the blank(s) with correct word
Which of the following is one of Mendel's three hypotheses for explaining his observations?
a. The pairs of alleles remain together in the formation of gametes so that each gamete gets both alleles. b. Adult plants always have traits that are governed by a single pair of alleles, but the number of possible alleles varies with each trait. c. Adult plants carry a trio of genes that will determine the inheritance of each allele. d. If an adult plant has two different alleles, the alleles blend.