Of the total RNA in cell, rRNA constitutes

1-10%

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10-20%

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30-50%

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50-80%

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Solution

The correct option is D 50-80%
Ribonucleic acid or RNA is single stranded polymer chain of ribonucleotides. Four types of ribonucleotides are involved AMP, GMP, CMP, UMP. Backbone of the strand is produced by alternate ribose and phosphate molecules. Ribosomal RNA (rRNA) is the most abundant form and constitutes 70 to 80 percent of total RNA of the cell. Other forms of RNA are mRNA and tRNA.

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Q. The marks obtained by 40 students of a class are given below :

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50, 80, 60, 70, 40, 50, 60, 90, 60, 40, 40, 60

, and

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Construct a frequency distribution table.

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80, 10, 30, 70, 60, 50, 50, 40, 40, 20, 40, 90, 50, 30, 70, 10, 60, 50, 20, 70, 70, 30, 80, 40, 20, 80,

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How many numbers are less than

35

Q. Find mode for grouped data given below

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