Answer the following questions true (T) or false (F)
1. Vomiting is a common sign of viral gastroenteritis.
2. All regions of the digestive system have extensive microbiota.
3. Dysentery is a severe type of gastroenteritis in which stools contain mucus and blood.
1. FALSE
2. FALSE
3. TRUE
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The unique feature of HeLa cells that make them
important for research is that a. they are identical to all other human cells. b. they are immortal cells and will grow in culture. c. they are limited in growth cycles. d. they are like stem cells. e. all of these make them important.
You are working to identify enhancer regions of a particular gene. The best place to look is
A. immediately downstream of the promoter. B. immediately upstream of the promoter. C. primarily upstream of the promoter, possibly some distance away. D. primarily downstream of the promoter, including the exons of the coding region.
The idea that alleles of a particular gene separate independently into individual gametes during meiosis is Mendel's principle of ________.
a. unit inheritance b. segregation c. independent assortment d. dominance
When a human eats a steak, the human is acting as a _____.
a. secondary consumer b. primary consumer c. tertiary consumer d. producer e. detritivore