Incomplete dominanceCodominancePolygenic inheritance explains inheritance resulting in two dominant alleles being expressed in the offspring, with neither trait being masked.
Incomplete dominanceCodominancePolygenic inheritance explains traits that are neither dominant nor recessive, resulting in a third phenotype in the offspring that appears to blend the traits from the parents.
Mendelian traitsPolygenic traitsCodominant traits are traits resulting from the expression of multiple genes from different loci of different chromosomes.
Rhesus factorAntigen factorAntibody factor is a protein found in blood that is represented by a + or – sign, which affects the compatibility of blood with other blood types.
A chicken with black feathers (BB) is crossed with a chicken with white feathers (WW). The offspring have black and white feathers.What is the genotype of the offspring?1. 2. 3. 4.
on the blood determine a person’s blood type. in the blood attack foreign blood not compatible with the antigens on the blood.
Incomplete dominance✔ CodominancePolygenic inheritance explains inheritance resulting in two dominant alleles being expressed in the offspring, with neither trait being masked.
Explain incomplete dominance, using snapdragon flowers as an example.
Incomplete dominance occurs when neither allele is fully dominant over the other. In snapdragons, a red-flowered plant crossed with a white-flowered plant produces pink-flowered offspring, showing an intermediate color.
A chicken with black feathers (BB) is crossed with a chicken with white feathers (WW). The offspring have black and white feathers.What is the genotype of the offspring?1. 2. 3. 4.
on the blood determine a person’s blood type. in the blood attack foreign blood not compatible with the antigens on the blood.
Polygenic traits are determined by multiple blood typescellsgenes received from each parent.
This is incomplete dominancecodominance because there are two recessivedominantpolygenic traits.
Type AType BType ABType O blood is known as the universal donor, which means it can be given to anyone needing a blood transfusion.Type AType BType ABType O blood is known as the universal recipient, which means it can receive all blood types during a transfusion.
✔ Incomplete dominanceCodominancePolygenic inheritance explains traits that are neither dominant nor recessive, resulting in a third phenotype in the offspring that appears to blend the traits from the parents.
This is X incomplete dominance✔ codominance because there are two recessive✔ dominantpolygenic traits.
Type AType BType AB✔ Type O blood is known as the universal donor, which means it can be given to anyone needing a blood transfusion.Type AType B✔ Type ABType O blood is known as the universal recipient, which means it can receive all blood types during a transfusion.
Explain why polygenic traits are expressed through quantitative variation, using skin color as an example.
Polygenic traits show quantitative variation because multiple genes contribute to the trait, with each allele adding a small amount to the overall phenotype. For example, different combinations of skin-color alleles produce a continuous range of pigmentation from light to dark.
The Rh factor identifies the presence of the rhesus protein in blood. The Rh factor can be represented by a + or – sign. It is important to know the Rh factor because just like how the antigens on the blood must be compatible, the rhesus protein in blood must also be compatible. If a person has Rh+ blood they can receive Rh+Rh-Rh+ or Rh- blood.If a person has Rh- blood they can receive Rh+Rh-Rh + or Rh- blood.
Mendelian traits✔ Polygenic traitsCodominant traits are traits resulting from the expression of multiple genes from different loci of different chromosomes.
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