The mother of Eldarion, King of Gondor, was Arwen, a pure-bred Elf; his father A
ID: 312105 • Letter: T
Question
The mother of Eldarion, King of Gondor, was Arwen, a pure-bred Elf; his father Aragorn was a human. Elves have pointed ears (P), adrenals absent (A) and a right-sided heart (R). All of these alleles are dominant to human-normal alleles. The genes are linked as shown below: If Eldarion marries a human woman and the three genes are non-interacting, what proportion of their children Will have Elven phenotype for all three characters? Will show human appearance for all three characters? Will have Elven ears and heart but human adrenals? Will have Elven ears but human heart and adrenals?Explanation / Answer
Elven ears, adrenal absent and right sided heart genes are all dominant and are in a linear order and not interacting so
it is a cross between P/p, A/a, R/r X p/p, a/a, r/r
will result offspring of type PARpar, PArpar, PaRpar, pARpar, Parpar, paRpar, pArpar, parpar
The the proportion of their offspring that