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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sex Limited Inheritance |
A trait that only in one of the two sexes |
Ovaries in females Testies in Males |
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Sex-influenced Inheritance |
Effect of sex on the phenotype of the individual. Some alleles are recessive in one sex and dominant in the opposite |
Baldness |
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X-linked Inheritance |
Inheritance of genes found on the X chromosome |
DMD |
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Codominance |
When a heterozygote expresses both alleles simultaneously |
Blood type |
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Overdominance |
When the heterozygote has a trait that is more beneficial than either homozygote |
Sickle cell and malaria |
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Incomplete penetrance |
When a dominant phenotype isn't expressed even though an individual carries a dominant allele |
Finger gene - Polydactyly |
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Incomplete dominance |
When they heterozygote has a phenotype that is intermediate between either corresponding homozygote |
4 O'Clock plants |
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Simple Mendelian |
Inheritance of alleles that obey Mendel's laws and follow a strict dominant-recessive relationship |
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Epigenetic Inheritance |
Heritable change in gene expression without a change in DNA sequence |
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Barr Body |
Highly condensed structure in the interphase nuclei of somatic cells that repressed a gene |
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Maternal Effect |
Inheritance pattern for certain nuclear genes in which the genotype of the mother directly determines the phenotype of her offspring |
Dexteral vs sinisteral snails |
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Law of Independent Assortment |
(2) different alleles will randomly assort their alleles during formation of haploid cells |
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Epistasis |
The alleles of 1 gene mask the phenotypic effects of the alleles of a different genes |
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Law of segregation |
The 2 copies of a gene segregate from each other during transmission from parent to offspring |
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What are the 5 stages of mitosis |
1. Prophase 2. Prometaphase 3. Metaphase 4. Anaphase 5. Telophase |
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Lethal Allele |
An allele that has the potential of causing the death of an organism |
E.G. Huntington Disease E.G. The Manx Cat |
