Treatment of fungal infections is more difficult than treatment of bacterial infections because the greater metabolic similarity between the fungi and their hosts limits the ability of a drug to have a selective toxicity.
Answer the following statement true (T) or false (F)
True
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During animal development, a fertilized egg divides to form a ball of undifferentiated cells called a:
A. blastula. B. gastrula. C. meristem. D. zygote. E. neurula.
The process where DNA is duplicated and then the cell divides into two cells is called:
a. mitosis. b. meiosis. c. binary fusion. d. auxospore. e. fusion.
Immediately after fertilization of a Drosophila egg, the zygote nucleus undergoes a series of divisions. Subsequent nuclear migration generates a(n) ________
A) zygote B) endoderm C) maternal effect D) homeodomain E) syncytial blastoderm
Frame-shift mutations:
A: only arise from deletions, not from insertions. B: almost always lead to loss of function. C: cause the ribosome to misread DNA. D: result in a single amino acid substitution. E: result from a deletion of three nucleotides.