is produced resulting in yellow hair You want to breed

Last updated: 8/24/2023

is produced resulting in yellow hair You want to breed Labrador retrievers and you cross a true breeding brown Labrador retriever to a true breeding yellow Labrador retriever All 15 of the F1 puppies are black After the puppies grow up you cross two of the F1 black dogs together In the F2 generation you get 8 black puppies 4 yellow pupples and 3 brown puppies Part 1 What is are the possible genotypets of the true breeding brown lab in the P generation Obble Brown ObbEE Obbee Could be either answer bbEE or bbfe Incorrect Since the questions states that the dog is true breeding it must be homozygous for both genes Part 2 What is are the possible genotype s of the true breeding yellow lab in the P generation Obbee SO OBbee OBBee Could be either bbee or Bbee O Could be either Bbee or BBee Could be either bbee or BBee All of the genotypes shown are possible Incorrect The offspring of this cross are all black If the yellow parent doesn t have a 8 allele the offspring cannot be black Part 3 What is are the possible genotype s of the yellow puppies in the F2 generation Select all that apply Bbee bbee Bble bble 884 Incomect The Bble genotype leads to a black phenotype because of the dominant 8 and E alleles M The bble genotype leads to a brown phenotype because of the recessive b allele and the dominant allele Part 4 You have a friend who wants to breed only brown Labrador retrievers She wants a true breeding brown puppy from your 12 litter Approximately how many of your 3 brown puppies from the F2 are true breeding X