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Ch 23

Exam 2: Patterns of Gene Inheritance - Vocabulary

QuestionAnswer
alternate forms of the same gene on homologous chromosomes alleles
The observable trait phenotype
The gene pattern responsible for the trait genotype
Mendel’s observations with pea plants - started by self-pollinating plants until they bred _____ ... true, meaning that they always produced the same phenotypes in offspring.
• When plants with different phenotypes were cross pollinated, the offspring showed... phenotypes with a distinct pattern
Each individual carries ______ factors that determine their phenotype 2
These factors _____ for sexual reproduction segregate
dominant alleles mask... recessive alleles
capital letter dominant trait
lower case letter recessive trait
homozygous dominant WW - widow's peak
homozygous recessive ww - no widow's peak
heterozygous Ww - widow's peak
Used to determine the outcome of a given cross Punnett Squares
horizontally List all possible genes contributed by the father
vertically List all possible genes contributed by the mother
a monohybrid cross looks at the inheritance of... one trait following breeding with 2 heterozygotes (Ww x Ww)
a dihybrid cross looks at the inheritance of... 2 traits between 2 heterozygotes (WwBb x WwBb)
non sex-linked genes are _____ genes autosomal
sex-linked genes example XbY
Created by: chelsea_2010
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