Which of the following techniques is most likely to lead to heteroplasmy?
A) Cytoplasmic donation
B) Embryo donation
C) Oocyte donation
D) In vitro fertilization
A) Cytoplasmic donation
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The outer layer of the mammalian kidney is the ____, and the inner layer is the ____
A. cortex; medulla B. medulla; cortex C. nephron; medulla D. cortex; nephron E. nephron; renal pyramid
In eukaryotic cells, what name is given to the region between the nucleus and the plasma membrane?
A) cytoplasm B) phospholipid bilayer C) nucleoid D) chloroplast
Which of the following is TRUE regarding how the DNA in your body's cells can accumulate mutations?
A) Some DNA spontaneously breaks down every second, making the chromosome significantly shorter with every passing day. B) Spontaneous mutation rates are around one in every four nucleotides that are replicated. C) The ultraviolet radiation in sunlight may induce changes in DNA. D) Mistakes are never made during DNA replication; they always occur during the G1 phase of interphase.
Suppose you have a random sample of 21 credit scores from a population of mortgage applicants with a sample mean of 620 and sample standard deviation of 70, and would like to calculate the 99 percent confidence interval of the population mean credit score. Which of the following would be the correct construction?
A. 620 ± 2.58 
B. 620 ± 4 (70), because 4 is the t-distribution critical value.
C. 620 ± 4 
, because 4 is the t-distribution critical value.
D. None of these choices are correct.