Developmental Drosophila genes, that when mutated cause the loss of alternate segments in the larva,
are called:a.
embryonic segment genes.
b. larval segmentation genes.
c. segment polarity genes.
d. pair-rule genes.
e. gap genes.
D
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Translation ends when a stop codon is at the ____ site, allowing a ____ to bind there
a. P; release factor b. A; terminator tRNA c. E; terminator tRNA d. A; release factor e. P; terminator tRNA
The vast majority of animals are:
a. mammals b. invertebrates c. vertebrates d. birds e. predators
Urinalysis can be used to identify all of the
following EXCEPT a. a metabolic problem. b. prostate cancer. c. kidney disease. d. diabetes mellitus. e. cardiac damage.
Twenty-five people developed symptoms of nausea, vomiting, and diarrhea three to six hours after attending a church picnic where they ate a ham and green bean casserole with cream sauce. The most likely cause of this case of food intoxication is
A) botulinum toxin. B) aflatoxin. C) staphylococcal enterotoxin. D) erythrogenic toxin. E) cholera toxin.