Dihybrid Crosses
A dihybrid cross is a genetic cross between 2 individuals that differ in 2 characteristics. This scrollable interactive explores how a dihybrid cross between 2 true-breeding parental pea plants results in a 9:3:3:1 phenotypic ratio in the F2 generation.
Topics
- 3:1
- 9:3:3:1
- allele
- allele combination
- characteristics
- chromosome
- completely dominant
- dihybrid
- dihybrid cross
- dominant allele
- dominant trait
- gametes
- gene
- genetic cross
- genotype
- genotypic ratio
- green
- green peas
- green phenotype
- Gregor Mendel
- heterozygous
- homozygous
- F1
- F1 generation
- F2
- F2 generation
- fertilization
- first filial (F1) generation
- law of independent assortment
- law of segregation
- monohybrid cross
- offspring
- P generation
- parental (P) generation
- parental phenotypes
- pea color
- pea shape
- peas
- phenotype
- phenotypic ratio
- Pisum sativum
- pod color
- pod shape
- principles of inheritance
- progeny
- Punnett square
- YYRR
- YyRr
- yyrr
- r allele
- R allele
- recessive allele
- recessive trait
- round
- round peas
- round phenotype
- round seed
- second filial (F2) generation
- seed color
- seed shape
- true-breeding
- wrinkled
- wrinkled peas
- wrinkled phenotype
- wrinkled seed
- y allele
- Y allele
- yellow
- yellow peas
- yellow phenotype