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
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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.
Glycolysis depends on a continuous supply of:
a. oxygen b. pyruvate c. NAD+ d. NADH e. H2O
The most primitive mammals, the ________, are oviparous like their reptilian ancestors.
Fill in the blank(s) with the appropriate word(s).
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