The convergent evolution of lactose tolerance in Europe and Africa is evidence that ____ evolution can drive evolution
Fill in the blank with the appropriate word.
cultural;biological
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The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called:
A. geometric progression B. natural selection C. superior beings D. survival of modifications E. biological diversity
Which of the following is an example of stabilizing selection?
A. selection for average birth weight in humans B. antibiotic resistance in bacteria C. decrease in the number of birds with intermediate-sized beaks who are unable to eat large or small seeds D. breeding dogs from wolves
Deamination is a spontaneous DNA mutation that converts cytosine to
A) thymine. B) guanine. C) adenine. D) uracil. E) None of these are correct.
Speciation in snails can be said to be instantaneous because left-handed and right-handed snails cannot mate and coiling direction is:
a. caused by a single gene. b. affected by ploidy. c. affected by chromosomal translocations. d. caused by multiple genes.