Azebra cell is just about to replicate its dna. which of the following will happen first?
a. the dna unravels to make two strands.
b. all of the cell's dna attaches to proteins.
c. rna attaches to dna
d. the dna folds over on itself to create a dense chromosome.

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

Me with biology endocrine system crossword also image left i need with hw

How are viruses different from eukaryotic cells?