Choose the true statements about HOX and MADS box genes.
_____ They evolved after the divergence of plants and animals.
_____ They encode transcription factors.
_____ They influence the expression of other genes.
_____ They influence the development of body plan in animals but do not function in plants.
_____ They evolved after the divergence of plants and animals.
__X__ They encode transcription factors.
__X__ They influence the expression of other genes.
_____ They influence the development of body plan in animals but do not function in plants.
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Which of the following toxins contributes to the virulence of B. pertussis and works by hemolyzing red cells and activating cyclic adenosine monophosphate, which inactivates several types of host immune cells?
a. Endotoxin b. Pertussis toxin c. Tracheal cytotoxin d. Adenylate cyclase toxin
A fisherman who cut himself on a fishing hook later develops a cutaneous disease at the inoculation site. The exudate is aspirated and set up on a routine AFB medium for culture. It is incubated at 37°C, but no growth is observed after 8 weeks; however, a slide of the exudate was AFB-positive. Which one of the following statements explains these findings?
a. The infection is most likely the result of a viral infection. b. The organism should have been incubated at 30°C. c. The organism should have been incubated at 42°C. d. The infection is most likely fungal in na-ture.
The mode of reproduction in which females produce genetically identical offspring from unfertilized eggs is known as ________
Fill in the blank(s) with correct word
Explain what effect histone deacetylase inhibitors would have on gene expression and why they may be an effective anticancer therapeutic because of their impact on tumor suppressor genes
What will be an ideal response?