Unit 10 Flashcards
What is mendels second experiment
The dihybrid cross
What does this second experiment support
The principle of independent assortment
What were the two hypotheses for this experiement
When crossing, do the traits stay together or do they seperate during meiosis?
What is the principle of independent assortment
When two different traits are located on different chromosomes, the alleles assort independently during metaphase 1 and 2
What is mendels experimental question
If two different traits are located on different chromosomes, are they expected to seperate independently of each other during meiosis
What was the prediction of this experiment
A 9:3:3:1 phénotypic ratio
What are the steps of the dihybrid experiment?
1-cross the homozygous dominant (RRYY) with the homozygous recessive (rryy), which will form RrYy
1-self fertilise the first generation and the second generation shows all four phenotypes in a 9:3:3:1 ratio
