In humans, sickle cell anemia is a disease caused by a mutation of a single locus gene which codes for an important blood protein. The allele for the normal protein (S) is dominant to that for the one causing sickle cell anemia. What gametes would be produced by individuals resulting from a SS x ss cross?
In turkeys, the normal bronze color is produced by a dominant gene âBâ. Its recessive allele âbâ produces red color. An independently assorting dominant gene, âNâ produces normal feathers. Its recessive allele ânâ produces hairy feathers.
Diagram a cross through the F2 generation between a homozygous bronze turkey with normal feathers (BBNN) and a red turkey with hairy feathers. (bbnn)
Diagram a cross through the F1 generation between a heterozygous bronze turkey with normal feathers and a red turkey with hairy feathers.
In humans, sickle cell anemia is a disease caused by a mutation of a single locus gene which codes for an important blood protein. The allele for the normal protein (S) is dominant to that for the one causing sickle cell anemia. What gametes would be produced by individuals resulting from a SS x ss cross?
In turkeys, the normal bronze color is produced by a dominant gene âBâ. Its recessive allele âbâ produces red color. An independently assorting dominant gene, âNâ produces normal feathers. Its recessive allele ânâ produces hairy feathers.
Diagram a cross through the F2 generation between a homozygous bronze turkey with normal feathers (BBNN) and a red turkey with hairy feathers. (bbnn)
Diagram a cross through the F1 generation between a heterozygous bronze turkey with normal feathers and a red turkey with hairy feathers.
