Steroid hormones bind to receptors inside the cell and alter their conformation. The hormone-receptor complex is then transported into the nucleus, where it can directly affect gene expression. To get from the location where the receptor binds the hormone to its site of action, the hormone-receptor complex must _____.
A) undergo another conformational change
B) become water soluble by binding to a carrier molecule
C) be transported through the nuclear pore complex
D) enter the smooth endoplasmic reticulum
Answer: C
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Recall Pasteur's experiment on spontaneous generation. If he had just warmed the nutrient-rich broth, rather than boiled it, what would have been the likely outcome of his experiment? Cells would _____
A) not have appeared in either flask B) have appeared in both flasks C) have appeared in the swan-neck, but not the straight-neck flask D) have appeared in the straight-neck, but not the swan-neck flask
Mammals living in cold environments tend to have ____ bodies and ____ appendages than species living in warm
environments.
a. larger; fewer b. larger; longer c. larger; shorter d. smaller; shorter e. smaller; longer
Which disease results from deletion of the ?-globin gene cluster LCR?
A) sickle-cell disease B) mild ?-thalassemia C) severe ?-thalassemia D) mild ?-thalassemia E) severe ?-thalassemia
____ is a systemic infection associated with microorganisms multiplying in circulating blood
Fill in the blank(s) with the appropriate word(s).