Genetics Chapter 9-2. Parent Generation P1 The 2 organisms that are used to reproduce.
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Transcript of Genetics Chapter 9-2. Parent Generation P1 The 2 organisms that are used to reproduce.
Punnett Square
• A way of organizing genetics so that scientist can determine the genotype of the offspring of 2 individuals
Monohybrid Punnett Square Problems
• Height – tall is dominant to short
• Symbol for tall _______
• Symbol for short _____
• Phenotype: – Homozygous tall male X short female
• Genotype:– Male _____ X Female ______
Monohybrid Punnett Square Problems
• Hairline: widows peak is dominant to no widows peak
• Symbol for widows peak _______• Symbol for no widows peak _____• Phenotype:• no widows peak male X widows peak
(heterozygous) female• Genotype:
– Male _____ X Female ______
Monohybrid Punnett Square Problems
• Eyebrows: bushy eyebrows dominant to fine eyebrows
• Symbol for bushy _______• Symbol for fine _____• Phenotype: • fine eyebrows male X homozygous bushy
eyebrows female• Genotype:
– Male _____ X Female ______