Civil defense officials usually stock large supplies of nonradioactive iodine, which would be distributed in the event of a release of radioactive iodine. Please explain why
What will be an ideal response?
Radioactive iodine would be concentrated in the thyroid gland and possibly destroy the gland. The hope is that the nonradioactive form would dilute the effect of the radioactive iodine and protect the thyroid.
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Srb and Horowitz’s research led to the ____ hypothesis, which has since been modified to the ____ hypothesis
a. one gene-one enzyme; one gene-one polypeptide b. one gene-one polypeptide; one gene-one enzyme c. one gene-one protein; one gene-one enzyme d. one gene-one polypeptide; one gene-one protein
e. one gene-one enzyme; one gene-one proteinPeople overpopulation is the current problem in many developing nations. Indicate whether the statement is true or false
The reason that the steroid hormone aldosterone affects only a small number of cells in the body is that _____
A) only its target cells get exposed to aldosterone B) only its target cells contain aldosterone receptors C) it is unable to enter nontarget cells D) nontarget cells destroy aldosterone before it can produce any effect
_____________ is the type of cell division that produces gametes.
Fill in the blank(s) with the appropriate word(s).