Term
| Chromosome Theory of Inheritance |
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Definition
| Mendelian genes have specific loci on chromosomes and it is the chromosomes that undergo segregation and independent assortment. |
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Definition
| genes on same chromosome that are inherited together in genetic crosses |
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Definition
| normal phenotype for a character |
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| Recombinant Types/ Recombinants |
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Definition
| Offspring that have new combinations. Ex on page 278. |
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Definition
| ordered list of the genetic loci along a particular chromosome |
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Definition
| genetic map based on recombination frequencies |
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Definition
| 1 map unit = 1% recombination frequency |
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Definition
| locate genes with respect to chromosomal features, such as stained bands which can be seen in the microscope |
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Definition
| Some animals such as bees and ants have no sex chromosomes. Females develop from fertilized ova and are thus diploid. Males develop from unfertilized ova and thus are haploid. |
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Definition
| A gene located on either sex chromosome. X and Y. |
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Term
| Duchenne Muscular Dystrophy |
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Definition
| sex-linked disorder. Absence of a key muscle protein called dystrophin and have mapped the gene for this protein to a specific locus on the X chromosome |
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Term
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Definition
| sex-linked recessive disorder. Absence of one or more of the proteins required for blood to clot. |
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Definition
| The inactive X in each cell of a female condenses into a compact object called a Barr Body. Inside nuclear envelope. |
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Definition
| members of a pair of homologous chromosomes do not move apart properly during meiosis I or sister chromatids fail to separate during meiosis II. |
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Term
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Definition
| when offspring have an abnormal number of a particular chromosome |
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Term
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Definition
| more than 2 complete chromosome sets |
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Term
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Definition
removes a chromosomal segment.
Diagram on pg. 286 |
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Definition
repeats a segment.
Diagram on pg. 286 |
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Term
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Definition
reverses a segment within a chromosome.
Diagram on pg. 286 |
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Definition
moves a segment from one chromosome to another, nonhomologous one. RECIPROCAL TRANSLOCATION is most common.
Diagram on page 286 |
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Definition
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Definition
| occurs during formation of the gametes and results in the silencing of one allele of certain genes |
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