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This problems posted on cheeg on 8/26, I thought it answer not correct, also I d

ID: 142943 • Letter: T

Question

This problems posted on cheeg on 8/26, I thought it answer not correct, also I dont't know which conclusions should choice. Please give me correct answer.

o 8/26/201 8 1 1 :55 PM O 79100 Print Calculator-Periodic Table Question 7 of 20 A Boris Magasanik collected data on the proportion of each base in RNA from different species. To compa' Map the relative amount of each base among the sources, he standardized the value of adenine to 10. Relative amounts of the other bases were calculated based on this value for adenine. The data are shown below Normalized Ratio Organism and Tissue Rat liver nuclei Rabbit liver nuclei Cat brain Carp muscle Yeast A 14.8 13.6 14.7 21.0 12.0 14.3 12.9 13.1 14.0 12.0 9.5 19.0 11.0 8.0 10 9.8 For rat liver nuclei, calculate the ratio of purines to pyrimidines. Enter your answer as a decimal. Number For rabbit liver nuclei, calculate the ratio of purines to pyrimidines. Continued below Number Previous GiveUp&View Solution Check Answer NextExit PreviousGive Up& View Solution Check Answer Nexx & Hint

Explanation / Answer

1. Rat liver nuclei = Purine/Pyrimidines
                    = A+G / C+U
                    = 10+14.8 / 14.3+12.9
                    = 24.8 / 27.2
                    = 0.91

2. Rabbit liver nuclei = 10+13.6 / 13.1+14
                       = 23.6 / 27.1
                       = 0.87

3. Cat brain = 10+14.7 / 12+9.5
             = 24.7 / 21.5
             = 1.14

4. The ratio of purine to pyrimidines is dependent on the species

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