Sharp Fanged
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Alleles
versions of a gene that code for a trait and are found on chromosomes
The combination of alleles (genotype) --
determines the trait (phenotype)
Genotype
the genetic makeup of a specific set of genes - the letters that code for a trait
Phenotype
the physical characteristics, or traits, of an individual organism - what the organism looks like
Gregor Mendel was the "Father of Genetics" --
who found that dominant and recessive traits are randomly passed down from parents to offspring
Dominant
the allele that is expressed when two different alleles or two dominant alleles are present - the overpowering allele - represented by an uppercase letter
Recessive
the allele that is expressed only when two copies are present - the hidden allele - represented by a lowercase letter
Heterozygous
when an organism has two different alleles for their genotype (ex: Tt)
Homozygous
when an organism has two of the same alleles for their genotype (ex: tt)
Complete Dominance
when the dominant allele is expressed in a heterozygous individual - ex: TT = tall, tt = short, Tt = tall
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