An aqueous solution contains two compounds X and Y. This solution gave absorbance values of 1.0 and 0.4 at 220 and 280 nm, respectively, in a 1 cm path length cell. Molar absorption coefficients (ε) of the compounds X and Y are as shown in the table below.

The concentration of Y in the solution is___________ mM.

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#Question id: 3878

#Unit 3. Fundamental Processes

Which of the following statements about the synthesis of rRNA and tRNA in E. coli is true?

TLS Online TPP Program

#Question id: 3879

#Unit 3. Fundamental Processes

Which of the following is not usually essential for the catalytic activity of ribozymes?

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#Question id: 3880

#Unit 3. Fundamental Processes

Which one of the following properties of the L-19 IVS ribozyme is not shared with enzymes that are purely protein?

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#Question id: 3881

#Unit 3. Fundamental Processes

Which one of the following statements about mRNA stability is true?

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#Question id: 3882

#Unit 3. Fundamental Processes

The reverse transcriptase of an animal RNA virus catalyzes:

TLS Online TPP Program

#Question id: 3883

#Unit 3. Fundamental Processes

Which of the following is correct about reverse transcriptase: