The best definition for genotype-environment interactions is
A. Environmental effects on the phenotype differ with genotype
B. Environment does not affect phenotype.
C. Phenotypes will always be affected by the environment no matter what the genotype
D. Genotypes and phenotypes do not change with environmental conditions
A
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In regions of a chromosome that encode highly structured RNA molecules, what sequence characteristics would you expect to find?
A. an abundance of pyrimidines, which play an important role in three-dimensional folding of RNA B. an abundance of uracil, which plays an important role in three-dimensional folding of RNA. C. multiple short segments capable of base pairing with adjacent or distant regions of the sequence. D. heavy methylation of these gene sequences, preventing their expression E. very little in the way of sequences that can form double-stranded helices
These white blood cells are especially effective
at killing bacteria and will actually explode their contents creating a net that traps and kills pathogens. These white blood cells are
a. neutrophils. b. macrophages. c. B lymphocytes. d. dendritic cells. e. eosinophils.
When an earthworm is underground, which type of receptors will relay information on directional
movement? a. lateral line organs b. otoliths c. cristae d. stereocilia e. statocysts
The pharynx contains the vocal cords.
Answer the following statement true (T) or false (F)