Skin cells are fastened into strong sheets by
A) basal bodies.
B) anchoring junctions.
C) tight junctions.
D) gap junctions.
Answer: B
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Heartburn is caused by ____
a. the gastroesophageal sphincter remaining too tightly closed b. the gastroesophageal sphincter remaining a little open c. the pyloric sphincter remaining too tightly closed d. the pyloric sphincter remaining a little open e. both the gastroesophageal and the pyloric sphincters remaining too tightly closed
What is the basic structure of most lipids?
A) A glycerol head and up to three fatty acid tails B) A linear chain of individual monomers C) A branched chain of individual monomers D) A chain of fatty acid tails
Which of the following is true regarding glycolysis
a. it occurs in the bacterial matrix of E coli b. it occurs in the viroplasm of HIV c. it occurs in the cytoplasm of muscle cells e. its occurs in the chloroplast of spinach
A small part of the human Y chromosome contains the gene that is responsible for determining maleness. What is the name of this gene?
A) NRY B) Xist C) SRY D) medulla E) Dax