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genetic make up for a particular trait in an organism


expression of a particular trait in an organism

law of segregation

sperm and egg carries only one allele for each inherited trait
-pairs of alleles separate during meiosis


an allele that has no noticeable effect on appearance


an allele that determines the organism appearance


organisms that have two different alleles for the same trait


organisms that have two identical alleles for the same trait


alternative form of a gene

dihybrid cross

an experimental mating of individuals differing at 2 genetic loci

monohybrid cross

parent plan only differs in 1 characteristic

F2 generation

the next generation the offspring of offspring

F1 generation

the first generation of offspring
F= filial -meaning son

P generation

the true-breeding parents


the offspring of two different varieties

cross- fertilization

fertilization of one plant by pollen of another plant

true breeding

offspring always has same trait
offspring =clones of parents

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