Ribose is an important component of RNA because
A) it is less stable than deoxyribose, which enables RNA to function as a short-term carrier of genetic information.
B) it is less stable than deoxyribose, which enables RNA to function as a long-term carrier of genetic information.
C) it is more stable than deoxyribose, which enables RNA to function as a long-term carrier of genetic information.
D) it is as stable as deoxyribose, which makes RNA and DNA functionally equivalent.
A) it is less stable than deoxyribose, which enables RNA to function as a short-term carrier of genetic information.
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A student sitting in the back row opened a bottle of foul-smelling perfume and dabbed it on her wrists. One by one (beginning from the back of the room) the students began to cough due to the foul smell. This phenomena was due to
A. an allergic reaction. B. osmosis. C. molecules moving from an area of low concentration to high concentration. D. diffusion. E. active transport.
The warm-blooded reptilian ancestors to the dinosaurs and mammals were the ________.
Fill in the blank(s) with the appropriate word(s).
The genus Staphylococcus is characterized by all of the following EXCEPT:
A. Catalase positive B. Productions of cytotoxins C. May be a part of the normal bacteria flora D. Staphylococcus aureus is the most virulent strain E. The bacterial cell wall is composed of peptidoglycan, teichoic acid, and LPS
What type of animal tissue may be involved in protection, secretion, and absorption?
a. Epithelial tissue b. Muscle c. Adipose d. Connective tissue e. Nervous tissue