Key_Terms_Mendellian_Genetics_lab

Key_Terms_Mendellian_Genetics_lab - Some key concepts for...

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Some key concepts for Lab exercise 2 and 3: Alleles : alternate versions of a gene; each gene may have 2 or more alternative forms (e.g. dominant and recessive). Autosomal : allele is present on any chromosome except the sex chromosome (X and Y). Back cross or Test cross : Test cross is a simple method devised by Mendel to verify the genotype of the F1 hybrid. When the F1 hybrid is crossed with the homozygous recessive parent, it is called a test cross. Since, the F1 is crossed back with one of the parents, it is also called a back cross. Centriole : a structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9+0 pattern. An animal cell usually has a pair of centrioles involved in cell division. Centromere : the centralized region joining two sister chromatids. Centrosome : material present in the cytoplasm of all eukaryotic cells, important during cell division; the microtubule organizing center. Chromatids : duplicated chromosomes attached to one another. Chromatin : the complex of DNA and proteins that makes up a eukaryotic chromosome. Chromosome
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Key_Terms_Mendellian_Genetics_lab - Some key concepts for...

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