Philip+and+Jared




 * //Homozygous// - When two alleles are present for a particular gene are the same.

//Heterozygous// - When the two alleles are different in that trait.

//Law of Segregation// - The two alleles will separate during gamete formation.

//L////aw of Independent Assortment// - The chromosomes line up independently. The inheritance of one trait is not influenced by any other traits because the tetrads and chromosomes line up independently.

//Dihybrid Cross -// A cross that involves two traits.

//Monohybrid Cross -// A cross that involves only one trait.

//True Breeding - Only shows one form of a trait after several generations of self-pollination.

Parental Generation -// The first two individuals that are crossed.

//First Filial Generation// - Offspring from P1 cross.

//Second Filial Generation// - These are offspring from the F1 generation self-pollinating.



MONOHYBRID CROSS

Definition - A cross that involves one trait.

Example -

P1 Green x Yellow (dominant) (recessive)

F1 ALL Green

F2 3:1 green:yellow

DIHYBRID CROSS

Definition - A cross that involves two traits.

Example -

P1 Purple and Tall x White and Short PPTT                    pptt

F1 All purple/tall PpTt

F2 Purple/Tall  9 Purple/Short 3 White/Tall    3 White/Short 1

**