Question

Trolls in halpain land have a gene that determines whether ornot they will have a tail. only trolls that are homozygousrecessive for this gene (alleles T and t) will grow a tail. anothergene (alleles S and s) determines whether this tail will be short,medium, or long because there are three possible phenotypes, youdetermine that this gene displays incomplete dominance. providedthat the extra tail is grown the SS genotype gives a short tail andthe ss genotypes gives a long tail. one day you see two trollsmating. The female troll has a medium lenght tail and the maletroll does not have a tail. The male troll randomly mumbles to youthat he has a genotype of Tt for the epistatic gene and that if hehad a tail, it would be long.

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

b) The trolls have 999 ofspring that curiously all have longtails. What is the probablity that the 1000th troll offspring hastail at all?

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

Please show all work so i can understand the problem