Question

watch the mutations and new traits video in the digital resources. then, complete the question below. how can a mutation result in a new trait (as seen with the scottish fold cats)? write here...

Explanation:

Mutations are changes in DNA sequences. In Scottish Fold cats, a mutation in the gene (e.g., the FGF5 - related or the specific gene for ear folding, actually the TRPV4 gene) alters the genetic code. This change affects protein synthesis or regulation. The modified protein (or altered gene expression) leads to a new phenotype: the folded ears. Mutations can introduce new alleles, and if the mutation is heritable and expressed, it results in a new trait. For Scottish Fold, the dominant mutation in the TRPV4 gene causes the cartilage in ears to develop differently, creating the folded ear trait.

Answer:

A mutation (like in Scottish Fold cats' TRPV4 gene) changes DNA. This alters gene - encoded instructions for proteins. The new protein (or gene regulation) leads to a new phenotypic trait (e.g., folded ears) by modifying development (e.g., ear cartilage formation).