Which is the only group of microorganisms that contains lipopolysaccharides (LPS)?

a. Archaea
b. Bacteria
c. gram-positive bacteria
d. gram-negative bacteria


Answer: D

Biology & Microbiology

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During prophase I of meiosis, a physical exchange of parts of homologous chromosomes can occur and is called a ____

Fill in the blank with the appropriate word.

Biology & Microbiology

Which purine base forms 3 hydrogen bonds when binding its complementary nucleotide base?

A. guanine B. cytosine C. thymine D. uracil E. adenine

Biology & Microbiology

The process in which oxygen, not carbon dioxide,

becomes attached to RuBP a. is the Calvin-Benson cycle. b. is the C3 pathway. c. is the C4 pathway. d. does not occur in plants in hot, dry climates. e. is photorespiration.

Biology & Microbiology

Which reaction is responsible for the first substrate-level phosphorylation of ADP in glycolysis?

a) glycose -> glycose 6 phosphate b) phosphoenolpyruvate c) 1,3 biphosphoglycerate -> 3-phosphoglycerate d) fructose 6-phosphate -> fructose 1,6-biphosphate

Biology & Microbiology