What is the leading scientific hypothesis explaining how the endomembrane system of eukaryotic cells originated?
A) From the inward folding of the plasma membrane
B) From engulfing prokaryotic cells
C) From engulfing eukaryotic cells
D) From the spontaneous coalescence of phospholipids
A
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Explain the phenomenon known as diauxic growth. Hypothesize why this type of regulation might be important for survival of a microbe in a community as well as a situation where lacking it might be advantageous
What will be an ideal response?
cDNA ____
a. does not contain exons b. is produced from tRNA c. production utilizes reverse transcriptase d. begins as a hybrid between two mRNA molecules e. is present only in bacteria
Which one of the following terms best applies to the fungus participant in a typical lichen?
A. Ectomycorrhizal fungus B. Arbuscular mycorrhizal fungus C. Mutualist D. Epiparasite
Which of the following hormones is released to correct a hypoglycemic state?
a. Insulin b. Testosterone c. Estrogen d. Glucagon