Probability that a troll offspring has medium lenght tail

Reference no: EM1386124

Question: Trolls in halpain land have a gene that determines whether or not they will have a tail. only trolls that are homozygous recessive for this gene (alleles T and t) will grow a tail. another gene (alleles S and s) determines whether this tail will be short, medium, or long because there are three possible phenotypes, you determine that this gene displays incomplete dominance. provided that the extra tail is grown the SS genotype gives a short tail and the ss genotypes gives a long tail. one day you see two trolls mating. The female troll has a medium lenght tail and the male troll does not have a tail. The male troll randomly mumbles to you that he has a genotype of Tt for the epistatic gene and that if he had a tail, it would be long.

a) what is the probability that a troll offspring has a medium lenght tail?

b) The trolls have 999 ofspring that curiously all have long tails. What is the probablity that the 1000th troll offspring has tail at all?

c) what is the probability that in the next two of the troll offspring, one has a long tail and one has no tail?

Reference no: EM1386124

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