abigailgraceblair
21.04.2020 •
Mathematics
George is studying a computer model of a DNA molecule, in which the letters A, C, G, and T are listed in a very long sequence. The model
includes a total of 2000 genes that are scattered along the full length of the molecule. The genes make up only a small fraction of the molecule.
George wants to identify the locations of the genes. Which would be the MOST USEFUL first step to follow?
A. Divide the model molecule into 2000 segments of equal size.
B. Identify all of the start codons in the model molecule.
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C. Identify the promoter regions in the model molecule.
D. Divide the model molecule into three-letter pieces.
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Ответ:
Given that we Jenny wants to equivalent fraction of 45% then convert into reduced fraction and then convert into decimal equivalent.
She has already shown her work. We just need to find the error if any.
to convert any percent value we just divide that number by 100 because percent itself means divide by 100.
Hence first step 45%=45/100 is correct.
Then she needed to convert into reduced fraction. To do that she divided numerator and denominator both by 5 and got 9/20.
step 2 is also correct.
Now she needs to convert into decimal equivalent so she divided 9 by 20 and got 4.5 while the correct answer should be 0.45
Hence she did error when converting fraction form into decimal form.