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16 terms

Ch. 9 Vocab (part 1)

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genotype
genetic make up for a particular trait in an organism
phenotype
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
recessive
an allele that has no noticeable effect on appearance
-aa
dominate
an allele that determines the organism appearance
heterozygous
organisms that have two different alleles for the same trait
homozygous
organisms that have two identical alleles for the same trait
allele
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
Hybrid
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