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In mice the loci for tail length, fur color and whisker shape are found on the...

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Biology

In mice the loci for tail length, fur color and whisker shapeare found on the same chromosome. Long tails (T) are dominant toshort tails (t), brown fur (B) is dominant to white fur (b) andstraight whisker (S) are dominant to curled whiskers (s). Mice thatwere homozygous dominant for all three characters were crossed withmice homozygous recessive for all three characters and all of theoffspring had long tails, brown fur and straight whiskers. These F1mice were test crossed. The phenotypes of the offspring from thesecrosses are shown in the following table.

Tail phenotypeFur phenotypewhisker phenotypenumber of progeny
shortbrownstraight13
longwhitestraight19
shortwhitestraight6
longbrownstraight43
shortbrowncurled22
longwhitecurled15
shortwhitecurled46
longbrowncurled5

a. Use the information in this table to construct a genetic map.Include the distances between the loci on your map.

b. For the data in this table calculate the interference. Whatdoes this value mean?

Answer & Explanation Solved by verified expert
4.0 Ratings (664 Votes)
AnsThe genotypes which found mostfrequently are called parental genotypes So genotypes T longtail B brown S    See Answer
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