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Bio Unit 2
Bobaey
20
Biology
9th Grade
05/14/2019

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Term
Genetics
Definition
The scientific study of heredity
Term
Fertilization
Definition
Male and female reproductive cells join to make a new cell
Term
Self-pollinating
Definition
Sperm cells fertilize egg cells within the same flower
Term
True-breeding
Definition
Plants that are self-pollinating therefore producing offspring identical to themselves
Term
Trait
Definition
A specific characteristic
Term
Hybrid
Definition
Offspring of crosses between parents with different traits.
Term
Gene
Definition
A factor passed down from parent down to offspring
Term
Allele
Definition
An alternative form of a gene
Term
Principle of Dominance
Definition
Some alleles are dominant over other recessive ones.
Term
Gametes
Definition
Sex cells
Term
Probability
Definition
The likelihood that a particular event will occur.
Term
Homozygous
Definition
Organisms that have two identical alleles for a particular gene
Term
Heterozygous
Definition
Organisms that have two different alleles for the same gene
Term
Phenotype
Definition
Physical traits (what you see)
Term
Genotype
Definition
Genetic makeup
Term
Punnett square
Definition
Use mathematical probability to help predict the genotype and phenotype combinations in genetic crosses.
Term
Independent assortment
Definition
Genes for different traits can segregate independently during the formation of gametes
Term
Incomplete dominance
Definition
In which one allele is not completely dominant over another
Term
Codominance
Definition
In which the phenotypes produced by both alleles are clearly expressed
Term
Multiple alleles
Definition
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