Lipopolysaccharide is comprised of three moieties (lipid A, core oligosaccharide, and O-antigen), which require ________ biosynthetic pathway(s).
A. one
B. two
C. six
D. three
Answer: B
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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 either albinism or cystic fibrosis, but not both?
a. 1/16 b. 3/8 c. 1/8 d. 1/4 e. 0
The first flowering plants, true mammals, and true frogs appeared during the _____ period.
A. Cambrian B. Jurassic C. Cretaceous D. Triassic E. Permian
The DNA in a prokaryotic cell is found in a membrane bound nucleus
1.True 2.False
What roles do plasmids play in biotechnology?
A) Plasmids are used to break open the cell wall of bacterial cells. B) Plasmids are used to provide nutrients to bacterial cells. C) Plasmids are used to infect and destroy bacterial cells. D) Plasmids are used as a vector to transfer genes between organisms.