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Legs in Biological Definition

Morphogenesis

... is the so-called antennapedia mutation. In Drosophila , antennae and legs are created by the same basic "program", they only differ in a single transcription factor. If this transcription factor is damaged, the fly grows legs on its head instead of antennae. See images of this "antennapedia" mutant ...

Morphogenesis

... is the so-called antennapedia mutation. In Drosophila , antennae and legs are created by the same basic "program", they only differ in a single transcription factor. If this transcription factor is damaged, the fly grows legs on its head instead of antennae. See images of this "antennapedia" mutant ...

Thermoregulation

... cool to very low temperature. Compared to the core body temperature, their legs or nose are extremely low (nearly 0 C), so they have nothing to lose heat in legs or nose. Because the extremities are not insulated well, high temperature ...

Chromosome

... at http://www.11q.org . Klinefelters syndrome (XXY). Men with Klinefelter syndrome are usually sterile. They tend to have longer arms and legs and tend to be taller than their peers. Other common symptoms are fatigue, apathy, lack of emotion, and an increased tendency to develop psychiatric ...

Homeobox

... Mutations to homeobox genes can produce easily visible phenotypic changes. Two examples of homeobox mutations in the above-mentioned fruit fly are legs where the antennae should be, and a second pair of wings. Duplication of homeobox genes can produce new body segments, and such duplications are ...

Proprioception

... of proprioception may happen periodically during growth, mostly during adolescence. Possible experiences include: suddenly feeling that feet or legs are missing from your mental self-image; the need to look down at arms, hands, legs, etc. to convince yourself that they are still there; falling ...
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