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Gene flow is a concept best used to describe allele exchange between

The ability to roll your tongue is dominant (R) to not being able to roll your tongue (r).   Grandpa Jones is a tongue roller but Grandma Jones is not. They have four children (2 sons and 2 daughters), one son cannot roll his tongue, but the other 3 children are all rollers. Their last daughter, Judy, married John Smith. John’s parents are both rollers, but John’s two sisters are non-rollers.  John is a roller.  John and Judy have three children named Crystal (a non-roller), Pricilla (a roller) and Jake (a roller). In a three generation pedigree, describe how each person would be represented (ie; square, solid, RR).

Fitness is defined as the relative ability of an individual (or population) to survive, reproduce, and pass on genes. True or False?

A man who has a sex-linked (X) recessive trait (such as red-green colorblindness or hemophilia) received this gene from which parent?

Why is natural selection key to evolution?

Labrador Retrievers have two different genes involved in coat color.  One gene determines whether pigment will be present or absent in the fur and the other gene determines whether the pigment will be black or brown.  This is an example of:

The genus and species names are collectively referred to as the scientific name. It is written in a form known as ______________.

The gene pool can best be described as the

What is it called when a few individuals colonize an isolated island, lake or some other new habitat?

Which of the following mechanisms directly alter allele frequencies and therefore contribute to evolutionary change?