Why is ATP required for glycolysis?
a. ATP is used to convert PEP into pyruvic acid.
b. ATP is used to convert DHAP into G3P.
c. ATP is used to reduce NAD+ to NADH.
d. ATP makes it easier to break apart glucose into two three-carbon molecules.
Answer: d. ATP makes it easier to break apart glucose into two three-carbon molecules.
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Two forms of hemophilia are determined by genes on the X chromosome in humans. Assume that a phenotypically normal woman whose father had hemophilia is married to a normal man. What is the probability that their first daughter will have hemophilia?
A) zero B) 1/2 C) 1/4 D) 1/3 E) 100%
The way a eukaryotic cell efficiently regulates the expression of multiple genes is to
a. have individual activators for individual genes. b. have a few activators that can interact with small subsets of genes. c. have activators that serve as catalysts for further activator protein synthesis. d. have a few activators that work in different combinations to activate different genes. e. have a single activator that undergoes modifications to enable interaction with different promoters.
Which of the following is an apicomplexan parasite?
A. Balantidium coli B. Giardia lamblia C. Toxoplasma gondii D. Naegleria fowleri E. Entamoeba histolytica
What is the right description for the submucosa?
A) made of smooth muscle B) contains secretory glands that release enzymes C) part of the peritoneum D) made of connective tissue