Which one of the following RNA types is most abundant in mammalian cells?
A. mRNA
B. tRNA
C. miRNA
D. rRNA
E. snRNA
Answer D
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Put the major stages of development in order
What will be an ideal response?
After hydrogens and electrons are stripped from NADPH, NADP+:
A. is broken down further to NAD plus phosphate in the Calvin cycle B. is sent to the electron transport chain of cellular respiration C. evaporates from the cell D. is sent to the Krebs cycle E. is recycled back to the light-dependent reactions
What are the sizes of two subunits used to compose prokaryotic ribosomes?
a) 20S + 50S b) 30S + 40S c) 30S + 50S d) 40S + 60S
Which term best describes an organism that has a minimum growth temperature of 6.5oC, an optimum temperature of 37oC and a maximum temperature of 46oC?
a. mesophile b. extremophile c. psycrotroph d. thermophile e. psychrophile