A Basidiomycete mycelium that is dikaryotic ________
a. is diploid
b. has double-nucleated cells on the gills of the basidium
c. has diploid spores
d. has pairs of cells that have not yet fused at branches of the mycelium
b
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What kind of skeletons do arthropods have?
a. exoskeletons b. endoskeletons c. hydrostatic skeletons d. segmental skeletons e. none of these
How does incomplete dominance affect the phenotype of a heterozygote?
A) It results in a blend of the dominant and recessive phenotypes. B) It results in the expression of only the recessive phenotype. C) The dominant phenotype is still expressed, but only in patches. D) The trait is not observed in the individual.
Gated channels are especially important in regulating the transport of ________ across a plasma membrane
A) glucose B) water C) ions D) small uncharged molecules E) nucleic acids
A protein on the surface of cytotoxic lymphocytes can elicit self-destruct mechanisms in target cells by interacting with
A) TGF? receptors. B) Death receptors. C) EGF receptors. D) Bcl-2. E) procaspase 3.