Skill 7.2 Analyze the transmission of genetic information

Skill 7.2 Analyze the transmission of genetic information (e.g., Punnett squares, sex-linked traits, pedigree analysis). 

This cross results in a 1 2 1 ratio of F2 offspring. Here, the P is the dominant allele and the p is the recessive allele. The Fi cross produces three offspring with the dominant allele expressed (two PP and Pp) and one offspring with the recessive allele expressed (pp). Some other important terms to know  

Homozygous - having a pair of identical alleles. For example, PP and pp are homozygous pairs. 

Heterozygous - having two different alleles. For example, Pp is a heterozygous pair. 

Genotype - the organism s genetic makeup. For example, PP and Pp have the same phenotype (purple in color), but different genotypes. 

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