Which of the following are NOT haploid?
A. Polar bodies and secondary spermatocytes
B. Primary oocytes and spermatids
C. Secondary spermatocytes and spermatogonia
D. Primary oocytes and spermatogonia
E. Secondary spermatocytes and spermatids
D
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In some genetically engineered tomatoes, fruit ripening was delayed by crippling the gene that produces which hormone?
A. auxin B. ethylene C. abscisic acid D. gibberellin E. cytokinin
In its use in conservation efforts, lichens are
classified as an example of a(n)
a. biological magnified species. b. endangered species. c. biodiverse species. d. indicator species. e. exotic species
Expression of the Hoxc6 gene causes ____
a. ribs to develop on a vertebra b. the development of eyes c. limb bud development d. gill arches to close e. the development of hair
Arrange these groups in order from most inclusive (most general) to least inclusive (most specific). 1. lobe-fins 2. amphibians 3. gnathostomes 4. osteichthyans 5. tetrapods
A) 4, 3, 1, 5, 2 B) 4, 3, 2, 5, 1 C) 3, 4, 1, 5, 2 D) 3, 4, 5, 1, 2