Page 199 - Science Course 3 (Book 1)

Mo5-L2b: What are the Patterns of Inheritance?

What are the Patterns of Multiple Alleles
Mo5-L2b Inheritance? a gene that has more than two alleles.

KEY CONCEPTS:
1. What are the other patterns of inheritance? Possible Alleles from Female

A Or | B Or i
|
Vocabulary A-Z
Let us learn some vocabulary | A AA AB A
Possible Alleles from Male B

Incomplete Dominance Or | | | | | i
an inheritance pattern in which offspring’s phenotype
is a combination of the parent’s phenotypes. | Or | AB | BB | B i
|
|

i
| A i | B i ii

Blood Type : A AB B i
Red R r White
RR rr

Sex-Linked Trait
a trait with the allele on an X or Y chromosome.

Pink
Rr Parent

Mother Father
not a carrier for with hemophilia
Codominance hemophilia gene XY
an inheritance pattern in which both alleles can be XX
observed in a phenotype

Children

Daughter Son Daughter Son
XX XY XX XY
without without
carrier carrier
hemophilia hemophilia

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