Maternal effect genes form ____ gradients in the developing egg
a. maternal Hox protein
b. segment
c. polarity gene
d. morphogen
e. maternal growth factor
d
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Methanogens, thermophiles, and halophiles characterize many members of this taxonomic group of microbes
a. Eukarya b. Archea c. Bacteria d. None of the above
Which organism is used to initiate the fermentation of cabbage to make sauerkraut?
A. Propionibacterium B. Saccharomyces cerevisiae C. Streptococcus lactis D. Spirulina E. Leuconostoc mesenteroides
The calcium that triggers muscle contraction is stored in the
A) motor neuron. B) plasma membrane of cells. C) endoplasmic reticulum. D) mitochondria.
Which of the following substances functions in the body's inflammatory response to prevent blood clots, regulate body temperature, and open airways to the lungs?
A) carotenoids B) leukotrienes C) prostaglandins D) melatonin