Why is intact mRNA difficult to purify?
A) RNases may be present in the environment.
B) RNases are present on human skin.
C) Cells naturally contain RNases.
D) Structural RNA in the ribosomes and circulating tRNA contaminate cytosol preparations.
E) All of the above.
E
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A commonly used artificial hip joint replacement consists of a cobalt-chrome alloy combination. The cobalt–chrome replacement consists of 34% cobalt and 19% chrome with the balance made up of a mix of other metals. If the hip joint replacement weighs 18 ounces, how many ounces of cobalt and chrome are in the replacement? Round Your answer to the nearest tenth.
A) 5.1 ounces cobalt; 2.8 ounces chrome B) 4.8 ounces cobalt; 2.7 ounces chrome C) 6.1 ounces cobalt; 3.4 ounces chrome D) 4.4 ounces cobalt; 2.5 ounces chrome E) 4.1 ounces cobalt; 2.3 ounces chrome
Which dimension of health primarily includes your ability to think and learn from life experience?
a. environmental b. emotional c. psychological d. intellectual e. cultural
Brain & Spinal cord, the command center
a. Central Nervous System(CNS) b. Sympathetic Nervous System(SNS c. Parasympathetic Nervous System(PNS) d. Central Nervous System perceives a threat
________ is a symptom of a disease in which there is excessive bile in the blood; the skin, whites of the eyes, and mucous membranes are yellow
Fill in the blank(s) with correct word