Question

5. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the mitochondrial genome, etc. Different elements are transmitted in different ways, so different parents transmit different elements to different offspring. For each case, answer 'both sons and daughters, 'only sons, 'only daughters, or 'neither sons nor daughters.' For instance, fathers transmit autosomal genes to both sons and daugthers, but fathers inherit Y chromosome genes to only sons. If a parent is not expected to have such genes, answer 'neither sons nor daugthers.' (1 point per answer) Mothers transmit Y chromosome genes to: Fathers transmit X chromosome genes to: Mothers transmit mitochondrial genes to: Mothers transmit z chromosome genes to: Mothers transmit W chromosome genes to:

Answer 1

Ans 5) Mothers transmit Y chromosome genes to neither sons or daughters (Only Fathers can transmit Y chromosome to only sons which is known as Y linked inheritance).

Fathers transmit X chromosome genes to Only daughters (Sons receive Y chromosome from father and X chromosome from mother)

Mother transmit mitochondrial genes to both sons and daughters.

Mothers transmit Z chromosome genes to only sons (In ZZ-ZW system which is observed in birds,reptiles etc, ZZ represents male and ZW represents female. Thus, Mother can transmit 1 Z to son and other Z comes from father. But,for daughter 1 Z will come from father because the daughter should inherit W from mother).

Mothers transmit W chromosome genes to Only daughters (as discussed above).