A mutant strain of yeast possesses a mutation in the nda2 gene, resulting in no production of ?1 tubulin. As a result, these cells would most likely
A) not duplicate their chromosomes.
B) not enter M phase.
C) not enter S phase.
D) keep the nuclear membrane intact.
E) have little or no spindle formation.
E) have little or no spindle formation.
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Fever response can be triggered by an endogenous pyrogen called interleukin-1.
Answer the following statement true (T) or false (F)
Why do ctenophores produce luminescence? a. To attract males
b. To lure prey. c. To frighten predators. d. All of these choices.
Which of the following is characteristic of hypothyroidism?
a. Grave’s disease b. elevated heart rate c. thyroid stimulating antibodies d. intolerant to cold temperatures e. heavy sweating
The gray-black, filamentous, haploid mycelium growing on bread is most likely what kind of organism?
a) zygomycete b) basidiomycete c) chytrid d) deuteromycete e) ascomycete