(A) Mendelian Genetics

Teacher Notes

1 Mendelian Genetics
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Essential Vocabulary: Men...el's Patterns of Heredity

Test crosses help to determine the genetics when the alleles are unknown. By crossing with a known recessive true-breed, the offspring will show what the genetics of the unknown subject. 

Test Cross
Peas

Pea plants are used in classic genetics experiments. Here is a cross between two pure breed plants but one is dominant and the other is recessive. 


Here is a cross between two hybrid plants. You get the classic 3:1 phenotype ratio. 


Peas 2
Flowers

Complete dominance genetic cross of two pure-breed or true-breeding parents (P1).


Common traits in pea plants. 

Sex Determination Beyond X and Y
(Intersex and transsexual spectrum)

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