Question

a) L is long-legged. l is short-legged. Long-legged is dominant, short legs are recessive. b) E is pointy ears. e is floppy ears. Pointy ears are dominant, floppy ears are recessive. c) W is brown fur, B is black fur. Brown and black are codominant. If W and B appear in the same dog, then that dog is "brindle" or striped. d) S is the allele for a dog who is social with non-dogs. s is the allele for a dog who is fearful of humans. e) O is brown eyes. U is blue eyes. O is dominant and U is recessive, EXCEPT when in females. Female dogs of the genotype OU have one blue and one brown eye.

Genotypes for selected dogs: Aleph = Ll Ee WW Ss OO Bizzy = LL EE WW SS OU

Aleph Bizzy
Caeser Druid Edda Fido Gia Hero
Isis Jack Killer Loo Marly
Nissa Olly Polly Quick Rani
Spot Tiny Ulysses Vera Whitey Yeller

Gia = LL EE WW SS OU

Hero = ll ee WB ss OU

Isis = LL EE WW Ss OO

Jack = Ll Ee WB Ss OO

Quick = LL EE WW Ss

What is the percentage chance that Killer will have differently colored eyes?

What are the chances that Nissa and Polly will have differently colored eyes?

Not counting Rani, in the first four generations of the pedigree, how many dogs have floppy ears?

The breeder killed Olly and Yeller, but not Nissa, Polly, Quick, Spot, Tiny, Ulysses, Very, nor Whitey. What can you say about Rani's genotype? (Clue: What is in Olly and Yeller's phenotype that would have been cause for the breeder to kill them?)

Why was breeding Isis and Jack an even bigger disaster than when Gia met Hero?

sickle-cell. If a heterozygote reproduces with a normal homozygote, what are the potential genotypes of their offspring?