Two short-tailed cats are mated. The litter contains 2 kittens without tails, 5 kittens with short tails, and 1 kitten with a long tail. How do you explain this genetically? Use symbols to support your explanation
Two short-tailed cats are mated. The litter contains 2 kittens without tails, 5 kittens with short tails, and 1 kitten with a long tail. How do you explain this genetically? Use symbols to support your explanation
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(9 pts). In the mouse, the genetic linkage among 3 gene loci isbeing studied. The loci are not part of a sex chromosome (e.g. X orY); but, they may be part of the same autosome. There are twoalleles at each locus. At the hair locus, allele H is for hairy, and h is for thehairless phenotype. At the ear locus, allele E isfor big, and e is for small. At the tail locus,allele T is for long, and t isfor short. Upper case alleles are completely dominant to theirrespective lower case allele. No interactions.
Kahn, a hairy, long-tailed,big-eared male mouse was mated with female mice, all hairless,short-tailed and small-eared. Those matings produced 900 childrenas described in the table below
Class # | Phenotypic Class ofChildren | Number ofchildren |
1 | Hairy, big ears,long tail | 300 |
2 | Hairy, big ears,short tail | 7 |
3 | Hairy, small ears,short tail | 66 |
4 | Hairy, small ears,long tail | 72 |
5 | Hairless, smallears, long tail | 12 |
6 | Hairless, big ears,short tail | 67 |
7 | Hairless, smallears, short tail | 310 |
8 | Hairless, big ears,long tail | 66 |
total | 900 |
a._______________: If the 3loci were segregating independently of each other, how manychildren would be expected in the genotypic class,