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Genes (Recessive (recessive, Example: A well-known recessive trait is blue…
Genes
Recessive
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A recessive allele won't be expressed in your phenotype unless your genotype is, for example, xx. A recessive allele is typically hidden behind a dominant allele.
Mendel
Gregor Mendel was an Austrian monk, who discovered the basics of heredity.
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Dominant
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A dominant allele is always expressed if it is within the genotype. It can be found in heterozygous (Xx) and homozygous (XX) gene pairs.
Alleles
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Example: A flower can have a dominant allele for pink petals, while another flower can have a recessive allele for yellow petals.
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Genotype
Genotype is the genetic code of an organism, that can be represented as, for example, XX Xx or xx. Genotypes are expressed as Phenotypes.
Example: The genotype for heterozygous brown eyes could be represented by the genotype 'Bb' (B= brown eyes, b= blue eyes)
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Heterozygous
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Example: Heterozygous brown have the genotype Bb, because those two alleles are different.
Phenotype
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Example: A person's genotype is Bb (heterozygous brown eyes). Because brown eyes are a dominant trait, that person's phenotype will be brown eyes.
Phenotype is the physical you have based on your genotype. Sometimes recessive alleles in your genotype aren't represented in your phenotypes as they are typically hidden traits.
