The lac operon in E. coli shares many similarities with a pigment protein gene in a rose plant. What statement below is not true of both the lac operon and the pigment gene?
A. Both the operon and the pigment protein gene require promoters.
B. The answer stating that both are multiple genes, and that the lac operon codes for lactose are incorrect.
C. The lac operon codes for lactose, while the pigment gene codes for a protein.
D. Both the operon and the pigment protein gene include the template DNA sequence.
E. Both the operon and the pigment protein gene are made of multiple genes.
E. Both the operon and the pigment protein gene are made of multiple genes.
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Ectomycorrhizae, associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots, usually involve
A. ascomycetes. B. basidiomycetes. C. zygomycetes. D. ascomycetes and basidiomycetes. E. ascomycetes and zygomycetes.
The cell walls of most fungi are composed of
A. chitin. B. cellulose. C. dentine. D. peptides. E. glycerol.
A group consisting of a common ancestor and all of its descendants is a
A. order. B. phylum. C. species. D. clade. E. genus.
Could two phenotypically normal parents have an affected child?
a. Yes b. No