What does it mean to be anemic?
a. Your hemoglobin has a lower affinity for oxygen.
b. You have less hemoglobin in your blood.
c. The hemoglobin tertiary and quaternary structure is altered.
d. Your hemoglobin has a higher affinity for CO2.
Ans: b. You have less hemoglobin in your blood.
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Which of the following signalling proteins is specifically associated with development in animals?
A) Hedgehog B) Zbtb7 C) Ryanodine D) calcium-dependent protein phosphorylases E) protein kinase A
All of the following are components associated with the bacterial cytoskeleton except
A) FtsZ. B) MreB. C) plaktin. D) crescentin. E) both choices B and C
Darwin bred pigeons to have particular traits. Today people breed dogs, cats, horses, and other animals for the same reason. These activities illustrate
A) negative selection. B) positive selection. C) artificial selection. D) veterinary selection.
The common ancestor shared by mouse and gorilla is at point ________ on the phylogeny shown.
A. A B. B C. C D. D E. E