The chemical formula for glucose, C6H12O6, represents ____ atom(s) and ____ molecule(s)
a. 3; 3
b. 3; 6
c. 12; 12
d. 24; 1
e. 1; 24
d
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Gastrulation ________
A) produces a solid ball of cells B) changes the blastocyst into an embryo that has three tissue layers C) changes the fertilized egg into a blastocyst D) changes a gastrula into a blastocyst
Transfusion reactions are the result of antibody reaction to
A) glycolipids and glycoproteins on the surface of red blood cells. B) MHC molecules on red blood cells. C) MHC molecules on white blood cells. D) plasma proteins. E) foreign antibodies.
The results of the treatment of 20 boys with SCID-X1 showed that ____
a. SCID-X1 can be cured through genetic engineering b. none of those treated were cured of the disease c. a bone marrow transplant can cure SCID-X1 d. our understanding of the human genome exceeds our ability to modify it e. the “treatment” caused numerous unforeseen complications.
Modern day birds are most closely related to which of the following?
A. mammals B. dinosaurs C. amphibians D. lungfish