How to create a punnett square.
Why is gene expression a regulated process?
A brief overview on Punnett Squares
Punnett square- a chart which shows/predicta all possible gene combinations in a cross of parents(whose genes are known).
The Punnett squares were named for the geneticist, Reginald Punnett.
He discovered basic principles of sex linkage and sex determination
Worked with the feather color traits of chickens to separate male and female
Gregor Mendel did this with pea plants for their heights
Write down the genotypes of each parent. (given to you/ possible to determine)
BB will give dominant traits
Bb will give dominant
Draw a punnett square and fill the chart.
list all phenotypes of the cross.
phenotype(physical appearance)- (B) all 4 offspring will have a 100% dominant trait.