The characteristic lesion for tertiary syphilis is the presence of (gummas/necrosis/granulomas) in bones, in nervous tissue, or on the skin

What will be an ideal response?


gummas

Biology & Microbiology

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In a zygotic life cycle:

A. Haploid cells form gametes that fuse to produce thick-walled diploid zygotes capable of surviving stressful conditions. B. There is an alternation of generations. C. The zygote undergoes meiosis and produces many heat-resistant spores that increase the population size and aid in dispersal. D. Haploid cells form spores that in turn fuse to produce thick-walled zygotes capable of surviving stressful conditions. E. none of the choices provided.

Biology & Microbiology

Other than the proteins that they encode, what is a major difference between cell-specific and housekeeping genes?

a. Cell-specific genes are expressed only in a single cell type; housekeeping genes are expressed in all cell types. b. Cell-specific genes have promoter proximal elements and enhancers; housekeeping genes have only promoter proximal elements. c. Cell-specific genes have promoter proximal elements that use cell-specific activators; housekeeping genes use "universal" activators. d. Cell-specific genes are only found in certain cell types; housekeeping genes are found in all cell types. e. Cell-specific genes have promoter proximal elements that use "universal" activators; housekeeping genes have promoter proximal elements that respond only to specific activators.

Biology & Microbiology

Darker skin color is correlated with ____

a. the northern hemisphere b. inland regions c. coastal regions d. longitude e. the intensity of UV radiation

Biology & Microbiology

Which of the following lists plants in order from most primitive to most advanced? 

A. ferns ® mosses ® angiosperms ® gymnosperms B. mosses ® gymnosperms ® ferns ® angiosperms C. mosses ® ferns ® angiosperms ® gymnosperms D. mosses ® ferns ® gymnosperms ® angiosperms

Biology & Microbiology