Question

mechanisms of biological evolution: 11. fill in the chart about each of the mechanisms of biological evolution. you just need 1 sentence to describe what is occurring. you will be using slides #22 & 23. mechanism description mutation migration genetic drift natural selection genes and variations: 12. what are heritable traits controlled by? 13. true or false: populations, not individuals, evolve over time genetic variation:

Explanation:

For question 11:

• Mutation: A change in the DNA sequence occurs.
• Migration: Individuals move between populations, changing gene - pool frequencies.
• Genetic Drift: Random changes in allele frequencies occur in a population.
• Natural Selection: Organisms with favorable traits are more likely to survive and reproduce.

For question 12: Heritable traits are controlled by genes.
For question 13: Evolution is a change in the genetic composition of a population over time, so the statement "Populations, not individuals, evolve over time" is True.

Answer:

11.
Mutation: A change in the DNA sequence.
Migration: Movement of individuals between populations.
Genetic Drift: Random fluctuations in allele frequencies.
Natural Selection: Differential survival and reproduction based on traits.

1. Genes
2. True