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Question

What does heterologous mean?


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Solution

Heterologous:

  1. Heterologous indicates any structure or gene that is not similar to its contemporary.
  2. The genes that differ in origin and activity are referred to as heterologous genes.
  3. They are unique in terms of sequence and activity.
  4. Similarly, anatomical structures that developed from different ancestral lineages are termed heterologous or analogous.
  5. They have the same function but differ in structure and origin.
  6. For example, the wings of birds and bats both evolved to facilitate the same purpose (aviation) but their ancestral lineages aren't the same.
Homologous & Analogous Organs

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