Explain how the transition to eukaryotic cells, through endosymbiosis, resulted in the loss of an individual's ability to reproduce independently
What will be an ideal response?
ANS:
Prior to endosymbiosis, the two cells would have replicated independently. Once one of the cells was living entirely within the other, it could not be replicated unless the cell around it also replicated. Thus, the new symbiont lost its ability to replicate independently.
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Which of the following must be true for a female to have hemophilia?
a. Her mother is not a carrier and her father has the disease. b. Her mother is homozygous normal and her father is a carrier. c. Her father and mother are heterozygous. d. Her mother is a carrier and her father has the disease. e. Her father is heterozygous.
If the t-stat for the sample estimate of a coefficient, M1 calculated as the following, t = 
, where m1 is the estimated coefficient and Sm1 is the properly estimated standard error for the coefficient, comes out to be 2.7, what is the appropriate conclusion?
A. Fail to reject the null hypothesis that the population coefficient M1 = 1 at a 95% confidence level. B. Reject the null hypothesis that the population coefficient M1 = 2 at a 99% confidence level. C. Reject the null hypothesis that the population coefficient M1 = 0 at a 99% confidence level. D. None of these choices are correct.
Any collection of nerve cell bodies in the PNS is called a:
A) dendrite. B) ganglion. C) efferent nerve. D) afferent nerve.