Across
- 4. a change in the nucleotide sequence of DNA
- 7. recombination, the exchange of genetic material between chromosomes during crossing over in meiosis, resulting in new genetic combinations in offspring
- 8. reproductive success, a measure of fitness that compares reproductive success between groups of individuals within a population
- 9. the process in which one species gives rise to a new and distinctly different species
Down
- 1. selection, a mechanism of evolution in which organisms better adapted to their environment are more likely to survive and pass on genes to viable offspring
- 2. an organism’s ability to survive and reproduce in its environment
- 3. flow, the transfer of genes from one population to another due to immigration, emigration, or interbreeding
- 5. pool, all of the different genes within a population
- 6. drift, the change in allele frequency due to random chance; usually has a greater effect on a smaller population