Which of the following fungi usually form arbuscular mycorrhizal associations in which the outer cells of the plant roots are penetrated by the fungal hyphae?
A. ascomycetes
B. glomeromycetes
C. deuteromycetes
D. basidiomycetes
E. chytridiomycetes
B. glomeromycetes
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A germline mutation occurs in cells that give rise to
A. nonsex cells. B. skin cells. C. diploid cells. D. liver cells. E. gametes.
When ionic bonds are formed
1.atoms share electrons. 2.atoms either gain or lose electrons. 3.the atomic number of an atom changes. 4.isotopes are formed.
The nucleus separates the chromosomes from the rest of the cell. How is the information in the DNA communicated to the cell?
What will be an ideal response?
Which choice describes how the DNA molecule replicates?
A. dispersive B. semi-conservative C. conservative D. either dispersive or semi-conservative depending on the pH E. either dispersive or conservative depending on the organism