How many chromosomes did you inherit from your father?
A) 2
B) 23
C) 24
D) 46
B
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Hantaviruses are most commonly transmitted by ________ of virus-contaminated rodent ________
A) inhalation / saliva B) inhalation / excreta C) ingestion / saliva D) ingestion / excreta
Research has shown that commercial fisheries place selective pressure on fish populations by
harvesting mostly the ____ fish, resulting in ____.
a. young; aging populations b. larger; maturity at smaller sizes c. smaller; maturity at larger sizes d. prereproductive; declining birth rates e. postreproductive; no change in population size
Discuss how a genetic variant may explain why HIV infection rates are highest in sub-Saharan Africa. What will be an ideal response?
A pear plant with the genotype Aa can produce gametes containing:a
either A or Aa. b. only the dominant A. c. only the recessive a. d. either A or a. e. either AA, Aa, or aa.