Question

the dog breed shown below has been bred for many generations. it has been bred for its small size and friendly temperament. this is an example of... a cloning b artificial selection c genetic engineering d asexual reproduction

Explanation:

• Cloning: Involves creating an identical genetic copy of an organism. Not relevant here as it's about breeding over generations for specific traits.
• Artificial Selection: Humans breed organisms (like dogs) for desirable traits (small size, friendly temperament). This matches the description.
• Genetic Engineering: Directly manipulates an organism's genes in a laboratory. Not indicated in the problem.
• Asexual Reproduction: Produces offspring from a single parent without genetic recombination. Dogs reproduce sexually.

Answer:

B. Artificial Selection