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13 Cards in this Set
- Front
- Back
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Hereditary factors |
Genes, they didn’t know that at the time |
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Chromosome theory of inheritance |
Mendelian genes have specific Loci on chromosomes, Chromosomes undergo segregation and independent assortment |
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Morgans experiments |
F1 generation had already eyes, F2 generation showed 3:1 red: white ratio, but only males had white eyes, Morgan determined that the white eye allele must be located on the X chromosome |
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A gene located on either sex chromosome is called |
a sex linked gene |
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Can humans a sex linked to gene is generally referring to |
A gene the larger X chromosome |
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In order for a recessive sex linked trait to be expressed |
A female needs two copies of the allele, a male needs only one copy of the allele |
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Genes located on the same chromosome that tend to be inherited together are called |
Linked genes |
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Recombinant types |
Offspring with non-parental phenotypes |
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Cytogenic maps |
Indicate the positions of genes with respect to chromosome or features |
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Nondisjunction |
Can occur during meiosis one, pairs of homologous chromosomes do not separate normally during anaphase I |
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Aneuploidy |
Results from the fertilization of gametes in which nondisjunction has occurred, the cell is either monosomic, having only one copy of a particular chromosome, or trisomic, having three copies of a particular chromosome |
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Polyploidy |
A condition in which an organism has more than two complete sets of chromosomes, try purity, three sets of chromosomes, touch of clarity, four sets of chromosomes |
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Extranuclear genes |
Or cytoplasm genes, are genes found an organelle‘s on the cytoplasm, mitochondria and chloroplasts |
