Eggs can contain bacteria such as Salmonella. explain why cooking eggs make them safe to eat.
What will be an ideal response?
Cooking eggs will denature (or kill) any harmful bacteria as it is protein based. The eggs must be cooked at a certain temperature for this to work properly, somewhere around 150° F.
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Which of the following are cartilaginous fish?
A. lampreys and lungfish B. sharks and rays C. caecilians and coelecanths D. hagfish and lungfish
Researchers trying to determine the genetic basis of a rare inherited disease have been examining the pedigrees of eight families affected with the disease
For three of the families the disease is coinherited with markers on chromosome 2, but for the other five families the disease is coinherited with markers from chromosome 10 . Why might this discrepancy occur? A. The same disease can be caused by defects in two or more genes on the same chromosome. B. The gene product of chromosome 2 silences the defect on chromosome 10 C. The same disease can be caused by defects in two or more genes on different chromosomes. D. Since more families showed linkage to chromosome 10, the disease gene is on chromosome 10 . The three families showing linkage to chromosome 2 are likely false positives.
Antibiotics are used to treat diarrhea caused by shiga toxin-producing E. coli.
Answer the following statement true (T) or false (F)
All of the following are mechanisms of antibiotic resistance used by the bacteria EXCEPT
A. Modification of drug absorption by the host B. Reduction of permeability of drug C. Modification of drug target in bacteria D. Export of drug from bacteria E. Inactivation of drug