Which of the following engulf and digest pathogens at the beginning of the inflammatory response?
a. Interferons
b. Neutrophils
c. Macrophages
d. Monocytes
b. Neutrophils
Neutrophils are white blood cells that engulf and digest pathogens at the beginning of the inflammatory response. Macrophages arrive after them and clean up debris and pathogens.
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The failure of chromosomes to separate during anaphase is called __________
A. synapsis B. maternal effect C. epistasis D. nondisjunction
As the endosperm matures, it swells and eventually becomes the fruit.
Answer the following statement true (T) or false (F)
The technique of preparing mitotic chromosomes involves a staining procedure using Giemsa stain. In this procedure, chromosomes are first ________ and then exposed to stain, producing ________ in a standard human karyotype.
A) heated; hundreds of reproducible bands B) heated; thousands of reproducible bands C) fragmented; hundreds of reproducible bands D) fragmented; hundreds of variable bands
A provirus:
A) was the first virus discovered by Wendell Stanley at the Rockefeller Institute B) caused the influenza epidemic of 1918 C) is composed of DNA or RNA surrounded by a protein capsid D) infects bacterial cells E) is viral DMA integrated into host DNA