When organisms mate and produce offspring, the genotypes of the parents determine the genotypes of their offspring.
In a species of bird, the gene that controls feather color has the alleles H and h. A bird with the genotye HH and a bird with the genotype HH mate and produce several offspring.
Which of the following genotypes could an offspring have? Select all that apply.
Answer (2)
The genotypes could an offspring have are hh and Hh.When organisms produce offspring, each parent contributes one allele for each gene to their offspring. Let's examine the parents:First parent: Hh (can contribute either H or h allele)Second parent: hh (can only contribute h alleles)To visualize this, we have to make a Punnet square.Hh - Yes, this is possible when the Hh parent contributes the H allele and the hh parent contributes an h alleleHH - No, this is not possible because the second parent (hh) cannot contribute an H allelehh - Yes, this is possible when the Hh parent contributes the h allele and the hh parent contributes an h allele
Answer:In this case, both parent birds have the genotype HH. This means each parent can only pass on the H allele to their offspring.When a parent with genotype HH mates with another parent with genotype HH, the offspring inherit one allele from each parent.Parent 1 gametes: HParent 2 gametes: HPossible offspring genotypes:• H (from Parent 1) + H (from Parent 2) = HHThe only possible genotype for an offspring from this cross is HH.Based on the possible standard genotypes (HH, Hh, hh)The only one an offspring could have is HH.
