Three loci, mitochondrial malate dehydrogenase that forms a and b (MDHa, MDHb), glucouronidase that forms 1 and 2 (GUS1, GUS2), and a histone gene that forms + and - (H+, H-) are located on chromosome 7 in humans
Assume that the MDH locus is at position 35, GUS at position 45, and H at position 75. A female whose mother was homozygous for MDHa, GUS2, and H+ and whose father was homozygous for MDHb, GUS1, and H- produces a sample of 1000 egg cells. Give the genotypes and expected numbers of the various types of cells she would produce. Assume no chromosomal interference.
MDHa GUS2 H+ = 315 MDHa GUS2 H- = 135
MDHb GUS1 H- = 315 MDHb GUS1 H+ = 135
MDHa GUS1 H- = 35 MDHa GUS1 H+ = 15
MDHb GUS2 H+ = 35 MDHb GUS2 H- = 15
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