17.2 monohybrid inheritance

Question 1

draw a genetic cross between GG and gg and add ratio

Answer 1

1:2:1 and page 423

Question 2

in humans, Huntington’s disease is caused by a dominant, mutant allele of a gene. draw a genetic diagram to show the possible genotypes and phenotypes of the offspring produced by a man with one allele for the disease and a woman who does not suffer from the disease

Answer 2

50% Hh Huntington’s disease

50% hh normal