Biology I

2. ratio stating the number of times a specific phenotype occurs in a population in a single generation.
3. formation of new and distinct species in the course of evolution.
6. graph of a normal (Gaussian) distribution, with a large rounded peak tapering away at each end.
7. action of coming to live permanently in a foreign country.
8. stock of different genes in an interbreeding population.
9. process of change in the genetic composition of a population due to chance or random events rather than by natural selection, resulting in changes in allele frequencies over time.
10. change over a short period.
12. movement of genes from different populations of species.
13. name for it is Gene Frequency.
14. process of natural selection involving the genome for a species directionally choosing certain genes to remain prominent in the species, such as a growth in size in response to predation.
15. called Diversifying selection. This type of selection favors both the extremes at the expense of the average.

1. known as ambideirectional selection
4. genetics is the study of allele frequency distribution and change under the influence of the four main evolutionary processes.
5. from a place.
11. evolutionary mechanism by which traits that increase the ability of individuals to attract or aquire mates appear with increasing frequency in a population.