Courses4937475741outlinefile496218541 codominance blue feet...

Courses/_493747574_1/outline/file/_49621854_1 Codominance Blue feet are dominant (F) in blue-footed boobys (yes that is a real animal). Those that display the recessive (f) phenotype have white feet. Use a Punnett square to cross a male homozygous dominant booby with a female homozygous recessive booby. Be sure to include both genotypic and phenotypic ratios. Mode of Inheritance: HOM Zoom in recessive but makes a third phenotype. More than 2 alleles per trait, and 2 alleles are dominant. Each dominant allele masks the recessive, but when the separate dominant alleles combine, they carry equal weight. Genotypic Ratio + Phenotypic Ratio

Transcript

00:01 Okay, i want to answer this question.

00:02 Let's talk about inheritance.

00:03 Question number one says for traits that show incomplete dominance the phenotype of a heterocygosis.

00:07 Remember that in complete dominance, you're going to have this.

00:10 When you have the homozygose for the dominant alil, or the homozygoyle here, let's suppose, okay? you're going to have the great phenotype, let's suppose.

00:19 This is another example, okay? when you have the w, w., or homozygotes for w a lill you're going to have the white phenotype.

00:30 Incomplete dominance, in complete dominance, when you have the heterocygous, if r is dominant to the w allele, then you're going to have here great, the great phenotype.

00:43 Okay? but in incomplete dominance, this is not going to happen because when you have the heterocygoyles, you're going to have a third phenotype that is a blend between this red and white.

00:53 It means in this case you can have a pink phenotype.

00:58 This is what happens in incomplete dominance.

01:02 So option a says the same as the homocygose dominant phenotype.

01:04 This is false.

01:05 Option b says the same as the homocygose dominant phenotype.

01:05 This is false.

01:05 Option b says the same as the homocygoteinant.

01:06 Which is a phenotype.

01:07 Option c says intermediate between the two homocygous phenotype.

01:12 And this is true and this is the answer for this question...