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With independent assortment, the ratio of genotypes in the F2 generation of a cross between true-breeding strains (AA bb × aa BB) can be described as 1:2:1:2:4:2:1:2:1. To what genotype does the "4" in the ratio refer?
Sexually Transmitted Infection
an infection transmitted through sexual contact, caused by bacteria, viruses, or parasites.
Young People
Individuals in the stage between childhood and full adult maturity, often encompassing teenagers and young adults.
Contraceptive Methods
Various techniques or devices used to prevent pregnancy.
Contraceptive Use
The practice of using methods or devices to prevent pregnancy as part of family planning.
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