Surface barriers, such as cutaneous and mucous membranes, serve the immune system as the __________.
What will be an ideal response?
first line of defense
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The Limulus amebocyte lysate assay is used to detect endotoxin in clinical samples such as serum or cerebrospinal fluid
Indicate whether the statement is true or false.
In many areas of the world, humans are destroying habitats at an alarming rate. Why is habitat destruction so dangerous?
What will be an ideal response?
The progesterone receptor (PR) is a steroid hormone receptor and transcription factor. The protein SRC-1, which does not bind DNA by itself, can bind to PR and increase expression of genes regulated by PR. Based on this information, SRC-1 is best described as a(n)
A. inducer. B. general transcription factor. C. specific transcription factor. D. coactivator.
Which of the following is associated with the greatest ability to withstand unfavorable conditions?
a. Capsule b. Cell membrane c. Fimbriae d. Endospore e. Cell wall