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Question

Format Font Tools Table Window $ Help Ra/ 84))51%( a ws 03 (1).docx 150% ts Tables s Charts SmartArt Review Paragraph Styles Nomal Table Paragr.. Heading 1Heading 2 Title 5 Assigned Number: Date due: DIRECTIONS: Please answer the following questions in complete sentences. Please type you answers in BOLD format. 1. A recent study aimed to sequence the genomes of 10,000 human genomes. Because there can be experimental errors in determining the complete genome sequence, scientists routinely repeat the experiment at least 30x in order to be fully certain about each nucleotide in every position. many letters (in terabytes) will the whole experiment generate? Please include all the (a) How data generated, including the repeated sequencing efforts.

Explanation / Answer

Solving this problem is relatively easy, you just have to make clear what you are going to do and some definitions.
They ask you to give the number of letters in terabytes therefore.
1 letter = 1 letter
1000 letters = 1k letters
1000000 letters = 1 M letters (mega)
1000000000 letters = 1 G letters (Giga)
1000000000000 letters = 1 T letters (Tera)

Now with these concepts we have to calculate how many letters were sequenced.

The human genome is composed of approximately 3 gigas of letters (that is, 3,000,000,000 letters)

These 3 gigas will be multiplied by the 10,000 times that the genomes were sequenced. We must take into account the number of repetitions that were made to have the total number of letters that were sequenced. In this case a repetition was made for every 30 sequences to avoid errors, therefore we divide those 10,000 times by 30 to obtain the additional number of repetitions that were made. This results in 333.33, meaning that 333 additional sequencing was done to the 10,000 originally planned. Therefore we have in total that 10,333 sequencing were done, this number will multiply by the 3 gigas that the human genome has.

The result of 3 Gigas per 10,333 sequencing studies results in 30,999 Gigas

That is 3.0999X1013 letters of information however, the final result was requested in teras, to obtain this result it is enough to divide the number of gigas by 1000

The final result is 30.999 teras or it can be rounded at 31 teras.

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