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13 Cards in this Set
- Front
- Back
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monohybrid cross
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crossing an organism with only 1 trait that differs
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hybrids
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offspring of two different homozygous varieties
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allele
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a different version of a gene
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homozygous
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a pair of alleles are exactly the same
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heterozygous
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a pair of alleles are different
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dominant allele
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overpowers the other alleles; when present, it is most likely to be expressed
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recessive allele
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the allele that is considered the 'weaker' one; is less likely to be expressed
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gamete
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sex cell
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Mendel's Principle of Segregation
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1. normal cells have chromosomes in pairs
2. to form gametes (sex cells), the pairs of chromosomes are separated 3. this explains the Principle of Segregation |
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genotype
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genetic makeup
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phenotype
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physical expression of the genes
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testcross
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to find out the genotype of a given organism, cross with a homozygous recessive partner
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dihybrid cross
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crossing organisms that differ in 2 characteristics
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