What advantage do sexually reproducing organisms have over asexually reproducing organisms?
increased fertilization rate
increased reproductive rate
Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children?
0% Hh : 100% hh
50% Hh : 50% hh
75% Hh : 25% hh
100% Hh : 0% hh
North Carolina Test of Biology. Form I RELEASED Fall 2009
Species Y always produces ethyl alcohol and CO2 . Which conclusion can be made from these observations?
Only Species Y is aerobic.
Only Species Y is anaerobic.
Both Species X and Y are aerobic.
Two different species of bacteria are examined. Scientists find that Species X always produces CO2 and H2O during cellular respiration.
Both Species X and Y are
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