Pair-rule developmental genes belong to which class of pattern-regulating genes?
A. homeotic
B. maternal
C. segmentation
D. None of the choices is correct.
C
Biology & Microbiology
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Embryonic cells that have the potential to become any cell type are called:
a. connective cells b. epithelial cells c. muscle cells d. nerve cells e. stem cells
Biology & Microbiology
To maintain order within their cells and organs, all living things must
a. extract energy from sunlight. b. constantly change. c. carry on metabolism. d. reproduce. e. be able to move.
Biology & Microbiology
How many ATP molecules (net yield) are produced per molecule of glucose during glycolysis?
a. 1 b. 2 c. 4 d. 36 e. 38
Biology & Microbiology
Passive immunity can be obtained by
a. having the disease. b. receiving a vaccination against the disease. c. receiving antibodies d. being exposed to a pathogen. e. all of these.
Biology & Microbiology