Answer:
Polydactyly is a genetic condition where formation of extra finger or toe takes place.The extra finger or toe is called as supernumerary.
Explanation:
Polydactyly is associated with mutation in genes in their cis position Mutation in Hoxa gene also results in polydactyly.
It is associated with autosomal dominant mutation that occur in single gene.
This condition appears 1 in every 500.This is a common disorder in African black children and is more frequently found in Africans that are living in Eastern and central part.
Polydactyly is mainly affects the right toe or finger.
It is common in men.
The extra digit may be functional or not,partly formed with some bone.
Answer:
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Answer:
Both fish and bird embryos exhibit gill slits and a tail.
Explanation:
According to embryology, all vertebrates exhibit similar traits and structures at their embryonic stage. It becomes very difficult to differentiate between the embryos of a fish, and that of a bird, or embryo of a fish, and a human. These traits, however, disappear, as the case may be, as the embryo develops into an adult. For example, in the case of the embryo of a fish, and a bird, both shows gills slits at their respective embryonic stage. However, the gill slits in fish develop into gills, whereas in the case of birds, it disappears as the embryo develops into an adult.
The most likely result of such a condition would be the reduction in the number of animals, plants and fishes that could have survived in the water. The water would also become more acidic in nature and all living things will start dying. The water would also become unusable for the humans. This water will increase the pollution level in surrounding areas and deplete the quality of the soil.
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