A cat breeder wishes to develop a breed that does not growl. She starts with a diverse mixture of cats. Generation after generation, she allows only the quietest cats to breed. After 30 years of work, she has a new breed of cat with interesting traits, but on average, the cats still growl at about the same rate as other cat breeds. Which of the following would be a logical explanation for her failure? a. There is no variation for the trait (growling). b. The selection was artificial, not natural, so it did not produce evolutionary change. c. The tendency to growl is not a heritable trait. d. There was no selection (differential reproductive success) related to growling behavior
A cat breeder wishes to develop a breed that does not growl. She starts with a diverse mixture of cats. Generation after generation, she allows only the quietest cats to breed. After 30 years of work, she has a new breed of cat with interesting traits, but on average, the cats still growl at about the same rate as other cat breeds. Which of the following would be a logical explanation for her failure?
a. There is no variation for the trait (growling).
b. The selection was artificial, not natural, so it did not produce evolutionary change.
c. The tendency to growl is not a heritable trait.
d. There was no selection (differential reproductive success) related to growling behavior
Introduction
Breeding refers to the process of selecting individuals to produce offspring with specific traits or characteristics. This can be done through natural selection, where individuals with advantageous traits are more likely to survive and reproduce, or through artificial selection, where humans actively choose which individuals to breed based on specific desired traits.
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