Consider a cross between two heterozygous plants with the allele combination Zz. Describe the allele combinations and what percentages of each would be predicted for the first generation.

Z z

Z ZZ Zz

z Zz zz

Your combinations are: ZZ[25%], Zz[25%], Zz[25%], zz[25%] each worth 25%

There are two Zz so that would be [50%]

•Final combinations• ZZ {25%}. zz {25%}. Zz{50%}

Heterozygous means one dominant one recessive (uppercase Z: dominant and lowercase z: recessive)

Homozygous dominant (homo means same. dominat means uppercase upercase so that would be ZZ) : ZZ is 25% chance that the offspring will have only the dominant trait

Homozygous recessive (homo means same. Recessive means lowercase lowercase so that would be zz) : zz will only have 25%

Heterozygous (one domiant=uppercase one recessive = lowercase trait) : Zz is 50%