Question

A sudden heritable change occuring in the genome is called whereas a sudden drastical change in phenotype leading to new species is called .

• A. variation
• B. speciation
• C. mutation
• D. saltation

Answer 1

Answer: (C), (D)

saltation

Mutation is a sudden heritable change occuring in the genome of an organism. But the rate of mutation is very low.

Saltation is a sudden change in phenotype leading to a drastic leap from one generation to next, causing speciation in a single step.

Variation is any difference (phenoytype or genotype) within the organisms.

Speciation means formation of new and distinct species through evolution.