The color of petunia flower can be changed from red to blue by altering the pH of the soil. This is an example of
A. norm of reaction.
B. the environment influencing the genotype.
C. codominance.
D. incomplete dominance.
E. range of inheritance.
A. norm of reaction.
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Heating up a reaction increases the speed of a reaction until the ____
a. enzyme denatures b. heat changes the pH of the reaction c. maximum speed is achieved d. cofactors can't bind the enzyme e. reaction begins to experience feedback inhibition
Gray is homozygous while blue is a heterozygous form of a semi-lethal gene. Give the ratio of the
offspring produced in the cross of two blues. What will be an ideal response?
Ockham’s razor could also be called the principle of ____
a. parsimony b. selectivity c. identity d. homogeneity e. exceptionalism
When you hyperventilate (breathe too fast), respiratory alkalosis (decreased concentration of hydrogen ions in the blood) can occur, which can cause you to faint. A common but potentially dangerous method to reverse respiratory alkalosis is to hold a
paper bag over your mouth and take normal breaths, thereby rebreathing the exhaled air. How might this method reverse respiratory alkalosis? A) Inhaling oxygen exhaled into the bag will cause oxygen to diffuse back into the blood and react with water to form carbonic acid, and blood pH will decrease. B) Inhaling oxygen exhaled into the bag will cause oxygen to diffuse back into the blood and react with water to form carbonic acid, and blood pH will increase. C) Inhaling carbon dioxide exhaled into the bag will cause carbon dioxide to diffuse back into the blood and react with water to form carbonic acid, and blood pH will increase. D) Inhaling carbon dioxide exhaled into the bag will cause carbon dioxide to diffuse back into the blood and react with water to form carbonic acid, and blood pH will decrease.