In what part of the world is the mutation for lactose tolerance most concentrated?

The negative impacts of nonnative species generally outweigh the positive impacts

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Warmer ocean surface water would most likely be found near