Over 90% of the worldwide deaths from malaria in 2011 occurred in:
a. Africa
b. India
c. Mexico
d. Southeast Asia
e. South America
a
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Which of the following is not correct concerning epistatic interactions?
A. They can be associated with enzymatic pathways. B. They produce variations in the expected 9:3:3:1 ratio of a dihybrid cross. C. They can result when a gene at one locus masks the expression of a gene at a different locus. D. They always result in a 9:7 ratio of a dihybrid cross. E. They are due to gene interactions.
Current research in behavioral ecology focuses on the overall contribution that behavior makes to an animal's
A. fitness. B. learning. C. competitive strategies. D. foraging efficiency. E. length of life.
A yeast artificial chromosome (YAC) is a ____ that can accommodate large DNA inserts and uses the eukaryote yeast
as a host cell. a. restriction enzyme produced from yeast chromosomes b. labeled nucleic acid used to identify a clone within a genome and c. q arm of chromosome 15 within a cell that encodes for a restriction enzyme and d. cloning vector that has telomeres and a centromere e. cloning vector that has 23 chromosomes
Sometimes plants produce embryos in seeds without meiosis and fusion of gametes. This process is
known as: a. coevolution. b. apomixis. c. self-pollination. d. mitosis. e. suckering