describe a real-life example of selection against a homozygous recessive genotype
Solution
When both the alleles of a particular chromosome are recessive, it’s called homozygous
recessive for that chromosome pair. There are few real life examples of homozygous recessive
such as albinism, cystic fibrosis etc.
Albinism is congenital disorder in humans that is a characterized by absence of pigment in skin,
eyes, and hairs. Absence of pigment may be partial or complete. Lack of skin pigmentation in
albinism makes individual more sensitive to sunlight and susceptible skin sunburn and skin
cancers. Albinism is also associated with visions defects such as amblyopia, photophobia and
nystagmus. This disorder is due to inheritance of recessive alleles which has defect/ absence of
tyrosinase involved in the production of melanin..
describe a real-life example of selection against a homozygous reces.pdf
1. describe a real-life example of selection against a homozygous recessive genotype
Solution
When both the alleles of a particular chromosome are recessive, it’s called homozygous
recessive for that chromosome pair. There are few real life examples of homozygous recessive
such as albinism, cystic fibrosis etc.
Albinism is congenital disorder in humans that is a characterized by absence of pigment in skin,
eyes, and hairs. Absence of pigment may be partial or complete. Lack of skin pigmentation in
albinism makes individual more sensitive to sunlight and susceptible skin sunburn and skin
cancers. Albinism is also associated with visions defects such as amblyopia, photophobia and
nystagmus. This disorder is due to inheritance of recessive alleles which has defect/ absence of
tyrosinase involved in the production of melanin.
