The fluorescent in situ hybridization (FISH) probes are applied to intact cells and observed microscopically for the presence and location of
A. recombinant DNA.
B. specific genetic marker sequence on genes.
C. DNA.
D. RNA.
E. proteins.
Answer: B
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How does the action of exocytosis by dendritic cells and macrophages differ from that of neutrophils?
A. Dendritic cells and macrophages primarily release microbial fragments, whereas neutrophils primarily act as antigen-presenting cells. B. Dendritic cells and macrophages primarily release products of autophagy, whereas neutrophils primarily release products of any cellular origin. C. Dendritic cells and macrophages primarily release products of any cellular origin, whereas neutrophils primarily release products of autophagy. D. Dendritic cells and macrophages primarily act as antigen-presenting cells, whereas neutrophils primarily release microbial fragments.
In all of the following characteristics, prokaryotes differ from eukaryotes except in
A. cell size. B. multicellularity. C. chromosomes. D. nucleic acids as the hereditary material. E. organelles.
If the DNA in a cell consists of 20% adenine, it will also have _____ thymine.
A. 30% B. 80% C. 40% D. 20% E. 10%
Scurvy is caused by a lack of which nutrient?
A) Calcium B) Vitamin D C) Vitamin C D) Omega-3 fatty acid