How much of your DNA is identical to that of another person of the same sex?

A) 99.9%
B) 99.5%
C) 90%
D) 78%


B

Biology & Microbiology

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When methanogens convert carbon dioxide to methane, it is a(n) ________ reaction.

A. aerobic B. oxidation C. ammonification D. reduction

Biology & Microbiology

The ancestors of land plants were probably ________ that lived in ________

A) green algae similar to charophytes; the open ocean B) green algae similar to charophytes; coastal marshes or lake fringes C) cyanobacteria; coastal marshes or lake fringes D) cyanobacteria; moist soil crust communities

Biology & Microbiology

Which of the following is most likely to cause genetic changes in a population that make it better adapted to its environment?

A) nonrandom mating B) natural selection C) genetic drift D) gene flow

Biology & Microbiology

The long and complex series of events that occurs when a signal binds to the cell surface and is converted from one form to another is called _____.

-signal transduction -transesterification reaction -action potential -signal cross-wiring

Biology & Microbiology