In ogres nose type results from a genetic maternal effect where the autosomal allele for a warty nose (w) is dominant over the allele for a smooth nose (w) Shrek's third cousin once removed, Shrekina, has a warty nose with a w*w genotype. She marries Golothm, a male, smooth nosed ogre with a ww.genotype and they have a warty nosed daughter, Mary. Mary marries Blutto, a smooth nosed male with a ww genotype to produce a son and a daughter. What would be the expected phenotypes and ratio of the F2 ogres (Mary and Blutto's children)? O 1 warty male : 1 warty female : 1 smooth male : 1 smooth female O Unable to determine given the information O 1 smooth male : 2 warty females : 1 warty male O 1 smooth male : 1 smooth female O 1 warty male : 1 warty female

Is the blueness a recessive trait why and why not  What was Elizabeth smith only possible genotype ? why? Why did zachry marrying his aunt cause him to have the blue sons ?

Adenike and her partner, Debare, are expecting their first child. Adenike is healthy as are her two sisters but her brother has PKU, a recessive disorder of the PAH gene. Genotypically he must be pah-/pah-. Neither of Adenike's parents has PKU but both of her grandmothers did. Debare is a carrier of Sickle Cell trait, which means he has one allele for wildtype hemoglobin (HbA) and one allele for Sickle Cell (HbS), making him HgA/HbS. More importantly, he has two alleles for Marfan Syndrome, a pleiotropic dominant disorder that can affect up to 30 different traits (M+/M+). No one in Debare's family has ever had PKU and no one in Adenike’s family has ever had Sickle Cell or Marfan Syndrome. They consult a genetics counselor over concern of the health of their baby. The genetics counselor collects the medical histories of three generations; their grandparents, their parents, and them. In her calculations, she produces a phenotypic key that indicates M = Marfan, Hb = sickle cell, and pah-…

Holstein cattle suffers from the condition citrullinemia in which homozygus recessive calves die within a week of birth bc they can not break down ammonia that is produced when amino acids are metabolized. If a cow that is heterozygous for the citrullinemia gene is inseminated by a bull that is homozygous dominant, ehat is the probability that a calf inherits citrullinemia ( autosomal recessive)