The final step of the Krebs cycle regenerates ____
a. pyruvate
b. acetyl-CoA
c. fructose bisphosphate
d. oxaloacetate
e. citrate
ANSWER: d
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Which medium can be described as a nutritionally rich medium used to grow various microor-ganisms, either as a broth or as an agar, with or without added blood?
a. Chocolate b. Colistin, nalidixic acid (CNA) blood c. Brain-heart infusion (BHI) d. Thioglycollate broth
Your mother has albinism, which is a recessive trait. Your father has cystic fibrosis, which is also a
recessive trait. You just got married and discover that your new father-in-law has albinism and cystic fibrosis. What are the odds that your first child will have neither albinism nor cystic fibrosis?
a. 1/16 b. 3/8 c. 1/8 d. 9/16 e. 0
Excretion refers to the
A) Extrusion of sweat from the skin B) removal of metabolic waste from the body C) Elimination of bacteria from the body D) Discharge of feces from the body
A testcross determines phenotype
__________________ Indicate whether the statement is true or false.