A woman heterozygous for color blindness (an X-linked recessive allele) marries a man with normal
color vision. What is the probability that their first child will be color-blind?
a. 25 percent
b. 50 percent
c. 75 percent
d. 100 percent
e. 0 percent
A
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Fermentation involves the use of pyruvate and/or other organic molecules as electron acceptors.
Answer the following statement true (T) or false (F)
Which neurotransmitter functions to stimulate skeletal muscle contraction?
a. acetylcholine b. epinephrine c. dopamine d. serotonin e. GABA
Y-linked traits are ____
a. known as homozygous traits b. known to skip generations in males c. carried only by males and transmitted only to males d. carried only by females, but are never expressed e. passed on to only 50% of female progeny
Which of the following correctly describes how protein kinase A can activate genes?
a. Nuclear protein kinase A is activated by cAMP to phosphorylate general transcription factors. b. Cytosolic protein kinase A is activated by cAMP to release the catalytic subunits, which move into the nucleus and phosphorylate CREB. c. Cytosolic protein kinase A is activated by cAMP to release the catalytic subunits, which move into the nucleus and phosphorylate general transcription factors. d. Nuclear protein kinase A is activated by cAMP to phosphorylate CREB.