There are two alleles for tail length in manx cats, one for a long tail ( and 9n

Question

There are two alleles for tail length in manx cats, one for a long tail ( and 9ne for no tal (T Cats that are homozygous for the long-tail allele (T T) have long tails, whereas heterozygous (T-T) cats are tailless. Cats with the genotype (T TM) die during embryonic development. If two tailless cats have a litter of kittens, what are the predicted phenotype percentages of the offspring? Number Number long tailed = % tailless = a long tailed cat and a tailless cat have kittens, what are the predicted phenotype percentages of the offspring? Number Number long tailed 1 1 % tailless = 0 hPrevious ®(ive up & View Sciution 0 Check Answer 0 Next

Explanation / Answer

Two tailless: TLTN × TLTN

F1generation : TLTL , TLTN , TLTN , TNTN(die before birth)

So long tailed 1/3 = 33.33%

No tail = 66.66%

If long tailed and tailless have kittens : TLTL × TLTN

F1 generation : TLTL , TLTN , TLTN , TLTL

Long tailed 50% and tailless 50%

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