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Genetics, DNA, and Mutations
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Genotype
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An organism's genetic code, or allele combinations. Represented by letters
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Terms in this set (25)
Genotype
An organism's genetic code, or allele combinations. Represented by letters
Phenotype
An organism's physical appearance, or visible traits.
Trait
A characteristic that an organism can pass on to its offspring through its genes.
Allele
Different forms of a gene
Heterozygous
An organism that has two different alleles for a trait, ex. Gg
Homozygous
An organism that has two identical alleles for a trait, ex. GG or gg
Dominant
Describes a trait that covers over, or dominates, another form of that trait.
Recessive
An allele that is masked when a dominant allele is present
Gene
A segment of DNA on a chromosome that codes for a specific trait
DNA
deoxyribonucleic acid, holds specific code for your body
Nucleotide
A building block of DNA, consisting of a five-carbon sugar, a nitrogenous base, and a phosphate group.
Nitrogenous bases in DNA
adenine, guanine, cytosine, thymine
Adenine (A) pairs with
Thymine (T)
Cytosine (C) pairs with
Guanine (G)
amino acids
building blocks of proteins