Mating an individual expressing a dominant phenotype, but whose genotype is unknown, with an
individual expressing the corresponding recessive phenotype is an example of:
a. a heterozygous cross.
b. an F1 cross.
c. an F2 cross.
d. a parental cross.
e. a test cross.
E
Biology & Microbiology
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When glucose is broken down by glycolysis during bacterial fermentation, what is the usual net production of ATP?
A. 24 B. 3 C. 36 D. 2 E. 38
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What was the probable source of gases
constituting the early atmosphere?
a. other planets orbiting the sun but close enough to the early earth b. meteorites c. volcanoes d. stromatolites e. comets
Biology & Microbiology
What cells in nervous tissue carry electrical signals?
A. neurons B. Schwann cells C. myelins D. neuroglia E. synapses
Biology & Microbiology
This tissue lines blood and lymph vessels
a. A b. B c. C d. D e. E
Biology & Microbiology