Question
In: Biology
Do you think that any of the specific body plant characteristics could have evolved based on...
Do you think that any of the specific body plant characteristics could have evolved based on genes similar to those that created the box gills in spiders? List the traits Then pick the one trait that you think was created by genes that are the most similar to the genes that created the book lungs in spiders. Provide a logical explanation for your pick.
Solutions
Expert Solution
Each trait is specfic to each organism. Trait can be determined by genes or the environment or by the interactions between them. Genotype is the genetic contribution of a trait and the outward expression of that genotype is called as phenotype.
I strongly believe that characterstics are developed from genes only. Each gene codes for a specfic trait.
Other than spiders mites and scorpions which belong to class archindae have book lungs for respiration.
A previous study investigated the fate of ancestral gills during the evolution of a specfic group chelicerates which belongs to arthropods. They examined the expression of two developmental genes, pdm/nubbin and apterous which codes for insects' wings as well as gills. In spiders these genes are expressed in successive segmental primordia which gave rise to book lungs, lateral tubular trachea and spinnerets, novel structures used by spiders to breathe in the land to to spin thier webs. When morphological and palentological evidences are combined, these observations suggest that fundamentally different new oragnisms in spiders are evolved from ancestral gills in parallel instances of terrestrialization.
gladiator answered 2 years agoRelated Solutions
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