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Bioterms 13
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9
Biology
9th Grade
02/08/2015

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Term
Genetics
Definition
The science of heredity dealing with the similarities and differences of related organisms resulting from interactions of genes and their environment.
Term
Trait
Definition
A qualitative characteristic; a discrete attribute as contrasted with metrical character. A trait is amenable to segregation rather than quantitative analysis; it is an attribute of phenotype, not of genotype.
Term
Hybrid
Definition
Any of mixed origin or composition, or the combination of two or more different things.
Term
Fertilization
Definition
A process in sexual reproduction that involves the union of male and female gametes to produce a diploid zygote.
Term
Gene
Definition
Fundamental, physical, and functional until of the body.
Term
Allele
Definition
One member of a pair of genes occupying a specific spot on a chromosome that controls the same trait.
Term
Segregation
Definition
The act of segregating, or the state of being segregated; separation from others; a parting.
Term
Gamete
Definition
A reproductive cell or sex cell that contains the haploid set of chromosomes, spermatozoon or sperm cell and egg cell or ovum.
Term
Principle of Dominace
Definition
Individuals with contrasting traits are crossed, the offspring will express only the dominant trait.
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