9. Two varieties of pumpkin with different weights were crossed: 5 lb. and 29 lb. 3/195 of the F2 progeny were like either parent. Solution How many contributing alleles are operating and how much does each contribute? What is the F1 phenotype? What is the chance of finding this phenotype among the F2?

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Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.