Sickle cell anaemia
Haemophilia
Tongue rolling ability
Baldness
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The correct answer is:
A. Sickle cell anaemia
Incomplete dominance occurs when the heterozygous genotype results in an intermediate phenotype rather than one allele being completely dominant over the other.
In sickle cell anaemia, individuals with the heterozygous genotype (Hb^A Hb^S) have sickle cell trait, where they produce both normal and sickle-shaped red blood cells. This is an example of incomplete dominance, as the heterozygote shows a blend of normal and affected traits rather than just one.
MYSCHOOL is actually correct because sickle cell anaemia is a s*x-linked trait including haemophlia, but ability to roll tongue is an example of discontinous variation and incomplete dominance occurs when one allele does not completely dominate another resulting in a blended phenotype all the options cannot be seen in a person and phenotpe means observable featues the only observable feature there is baldness .
The correct answer is *A) sickle cell anemia*.
Incomplete Dominance
Incomplete dominance occurs when one allele doesn't completely dominate another allele, resulting in a blended or intermediate phenotype. Sickle cell anemia is a classic example:
Sickle Cell Anemia
- *Genotype*: HbS (sickle) and HbA (normal)
- *Incomplete dominance*: HbS and HbA combine to form HbAS (sickle cell trait), which has an intermediate phenotype between normal and sickle cell anemia
In individuals with sickle cell trait (HbAS), the symptoms are generally milder than those with sickle cell anemia (HbSS).
The other options don't typically exhibit incomplete dominance:
Other Options
- *B) Haemophilia*: X-linked recessive disorder
- *C) Tongue rolling ability*: Complex trait influenced by multiple genes
- *D) Baldness*: Complex trait influenced by multiple genes and hormones
courtesy of Chatgpt
