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A zipper artifact along the frequency-encode direction is caused by:

Which of the following would NOT lead to an increase in the contrast-to-noise ratio (CNR)

A real sine wave has a frequency of 50 Hz and an amplitude of -2. Choose the pair of graphs which correctly describes the real and imaginary parts of the fourier transform of the sine wave. ©NAIT

A time signal described by a cosine wave has a frequency of 0.5 Hz. The signal is sampled by an analog-to-digital converter. What is the largest sampling interval that could be used before aliasing would occur?

A function g(x) is given as a function of distance. The distance is measured in meters. If the fourier transform G(k) of the original function is determined, the units of k will be:

What is the image weighting and frequency direction of the image above?

Match the parameters with the pulse sequence or imaging weighting given. There is only one combination that will work.

Which of the following observations would provide the strongest evidence that a trait is polygenic rather than controlled by a single gene?

A trait is controlled by a single gene, but individuals with the same genotype display different phenotypes depending on nutrition. Which statement is most accurate?

Which of the following genotypes would be considered hemizygous?