An alteration occurs during the formation of a dikaryotic cell, such that it has twice the number of nuclei compared to a normal dikaryotic cell. Only the number of nuclei changes; the type of nuclei remains the same. This altered cell is most accurately described as having
A. four diploid nuclei
B. two haploid nuclei.
C. has four haploid nuclei.
D. two haploid nuclei and two diploid nuclei.
E. two diploid nuclei.
Answer: C
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A. meiotic cell division. B. binary fission. C. mitotic cell division. D. fusion.
The bacterial Shine-Dalgarno mRNA sequence is:
A. a translation termination signal. B. the ribosomal binding site. C. a translational elongation factor. D. a protein coding region.
Hirudinea is the only class of annelids that contains:
A. species that are parasitic blood suckers B. species with a segmented body C. parapodia D. a gizzard E. a clitellum
You plant a seed in a pot with soil, add water, and then place it in the sunlight in a closed chamber. Before the seedling emerges from the soil, carbon dioxide levels increase in the closed chamber. This indicates that is occurring.
A. photosynthesis B. alcohol fermentation C. cellular respiration D. sucrose production E. fertilization