Question

A student is breeding beta fish to sell. The original population of fish he uses to start the breeding has a mixture of red fish, blue fish and purple fish. Purple are the most desirable fish. If the student uses selective breeding, which statement best describes how the population of fish will change over time?

A.The percent of red and blue fish in the population will increase and the percent of purple fish will decrease over several generations.
B.The percent of purple fish in the population will increase and the percent of red fish and blue fish will decrease over several generations.
C.The percent of purple fish and blue fish in the population will increase and the percent of red fish will decrease over several generations.
D.The percent of red fish in the population will increase and the percent of purple fish and blue fish will decrease over several generations.

Answer 1

Using selective breeding, the student will increase the percent of purple beta fish by consistently choosing them for reproduction, reducing the percentage of red and blue fish in the population over time.

Step-by-step explanation:

If the student uses selective breeding to increase the population of purple beta fish which are the most desirable, the percent of purple fish in the population will increase over several generations. This is because selective breeding involves choosing parents with specific traits to reproduce, in this case, purple coloring

Consequently, the offspring are more likely to exhibit this desirable trait, leading to a higher percentage of purple fish in the population. Over time, the percentages of red and blue fish would decrease as they are not being selected for breeding.