Which process marks the start of the dikaryotic stage (n + n) in the fungal reproductive cycle?

a. mitosis
b. meiosis
c. karyogamy
d. fertilization
e. plasmogamy


e

Biology & Microbiology

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By definition, if the DNA of a cell undergoes a spontaneous mutation, is was NOT due to 

A. exposure to radiation. B. insertion of transposons. C. errors in DNA replication. D. spontaneous depurination of nucleotides. 

Biology & Microbiology

Glycolysis depends on a continuous supply of:

a. oxygen b. pyruvate c. NAD+ d. NADH e. H2O

Biology & Microbiology

The most primitive mammals, the ________, are oviparous like their reptilian ancestors.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Some bacterial transposons, known as Tn elements, are larger than insertion sequences (IS elements) and contain protein-coding genes that have human health significance. What might such a bacterial transposon contain?

A) dissociation element B) proto-oncogene C) drug resistance D) pseudogene E) oncogene

Biology & Microbiology