Which of the following elements, when added to a nucleotide base, will create a base analog?
A. Carbon D. Boron
B. Oxygen E. Phosphorous
C. Bromine
C
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As a carrier, Tina has one son with Hemophilia A. If she becomes pregnant for a second time with a boy, what is the chance that her second son could also suffer from Hemophilia A?
a. None. b. 25%. c. 100% d. 50%.
Which of the following is NOT a contributing factor
in species extinction? a. habitat loss b. overharvesting c. habitat fragmentation d. conservation biology e. illegal wildlife trading
If a dominant allele of one gene completely suppresses the phenotypic expression of alleles of another gene, this is an example of __________
A) recessive interaction B) dominant interaction C) recessive epistasis D) dominant epistasis E) dominant suppression
Suppose you want to build a 95% confidence interval for the ATE when the average outcome for the treated (55 subjects) is 12, with a sample standard deviation of 4, while the average outcome for the control (65 subjects) is 10, with a sample standard deviation of 6. Which of the following would be the proper confidence interval?
A. 0 ± 2.58 
B. 0 ± 1.96 
C. (12 - 10) ± 1.96 
D. 0 ± 1.96 