Phenotypes:
A. can be subject to environmental
conditions.
B. only result from gene transcription.
C. are invariant.
D. result solely from the actions of a single
gene.
E. None of the answer options is correct.
A
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Birds are living representatives of the ____ lineage
a. anapsids b. archosaurs c. lepidosaurs d. synapsids e. crocodilia
A rich source of vitamin E is
a. oranges. b. chicken breast. c. corn oil. d. prime rib.
The mode of natural selection in which extreme phenotypes are less fit than the optimal intermediate phenotype is?
A. Stabilizing selection B. Artificial selection C. Uniformitarianism D. Directional selection E. Disruptive selection
Types of genetic markers include
A) places in the genome where a base varies among individuals in a population. B) places in the genome where all people have identical base sequences. C) the types of mRNAs in a cell. D) the proteins produced in a cell.