Which of the Following Is Determined About DNA from X-Ray

question 27

Multiple Choice

Which of the following is determined about DNA from X-ray diffraction data?

• A) DNA is uniform in diameter.
• B) DNA is long and narrow.
• C) Part of the DNA molecule repeats itself often.
• D) The DNA molecule is spiraled.
• E) All of these are determined.

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Definitions:

Test Statistic

A calculated value that is used in statistical testing to decide whether to reject the null hypothesis, based on the possible values it can take in relation to a theoretical distribution.

Rank Sums

A statistic used in non-parametric tests that involves summing the ranks of observations in samples.

Standardized Test Statistic

A calculated value from sample data that has been transformed to conform to a standard scale, used in hypothesis testing to determine how far a sample statistic differs from what is expected under the null hypothesis.

Matched Pairs

An experimental design where pairs of subjects are matched based on certain criteria to compare effects of different treatments.