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Mendelian Genetics
Genes
17
Biology
10th Grade
11/23/2009

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Term
Who is the creator of genetics?
Definition
Gregor Mendel
Term
Gametes
Definition
Sex cells
Term
Somatic cells
Definition
regular body cells
Term
Fertilization
Definition
the combonation of male gametes and female gametes to produce offspring
Term
Cross-pollination
Definition
move gametes of one plant to another plant and vice-versa
Term
Trait
Definition

a characteristic

ex: height, color, shape, etc...

Term
Hybrid
Definition
when plants with different traits are crossed, the offspring are...
Term
true-breeding
Definition
plants that, if allowed, self pollinate, would always give plants like themselves
Term
P generation
Definition
the plants Mendel started with. Two true-breeding
Term
Allele
Definition

a version of a trait

ex: trait- height. Allele- tall or short

Term
Dominant Allele
Definition
the version of a trait or allele that "wins" or covers up the other trait
Term
recessive allele
Definition
the version of the trait or allele that "loses" or gets covered up by the other trait
Term
F1
Definition
first filial. 100% dominant allele. hybrid
Term
F2
Definition
second filial. 75% tall (one allele) 25% short (other allele)
Term
Genes
Definition
factors that pass from parents to offspring. Physical factors
Term
Principle of dominance
Definition
Mendel states that some alleles of a trait are dominant and others are recessive
Term
T
Definition
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