Freshwater sponges reproduce asexually by forming resistant internal buds called
a. spicules.
b. larvae.
c. ovaries.
d. gemmules.
b
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The presence of ________ in the microenvironment of cancer cells acts a potent inhibitor of cell proliferation.
A) IL-1 B) TGF-beta C) TNF-alpha D) IL-2 E) INF-gamma
Animal genes transferred into plant cells cannot be transcribed and translated into proteins
a. True b. False Indicate whether the statement is true or false
What does the normal protein that is encoded
by the “cystic fibrosis” gene do?
a. transports chloride ions across membranes b. delivers chloride ions to the endoplasmic reticulum c. binds chloride ions to DNA prior to gene expression d. binds chloride ions to bacteria so they are more easily recognized by white blood cells e. the normal protein does more than one of these things
Oxygen is an excellent final electron acceptor because of its low electronegativity.
Answer the following statement true (T) or false (F)