Answer

Dominant and recessive traits influence natural selection by determining which individuals are more likely to survive and reproduce. Traits that are advantageous for survival and reproduction tend to become more common in the population, while disadvantageous traits may be selected against.3. Does a dominant allele mean that allele is better than the recessive allele?【Explanation】: The presence of a dominant allele does not necessarily mean it is better than a recessive allele. The term "better" is relative and depends on the environmental context. A dominant allele is simply one that is expressed in the phenotype when at least one copy is present, while a recessive allele is only expressed when two copies are present. The advantage or disadvantage of an allele is determined by how well it allows an organism to survive and reproduce in its environment.【Answer】: A dominant allele is not necessarily better than a recessive allele; it simply means that the trait it codes for is expressed in the phenotype when at least one copy is present. The effectiveness of an allele in a given environment determines whether it is better or worse.4. What variables can you control in this simulation?【Explanation】: In a simulation of natural selection, several variables can be controlled to study the effects of different factors on population dynamics. These variables include:- The traits that are being selected for (dominant or recessive)- The availability of resources (food, water, shelter)- The presence of predators- The environmental conditions (temperature, climate)- The mutation rate- The population size- The mating system (random, mate choice)【Answer】: In a simulation, you can control variables such as trait selection (dominant or recessive), resource availability, predator presence, environmental conditions, mutation rate, population size, and mating system.5. What factors outside of the simulation do you think could affect the population growth?【Explanation】: Several factors outside of a simulation can affect population growth in real-world scenarios. These factors include:- Environmental changes (climate change, natural disasters)- Human activities (deforestation, pollution, hunting)- Disease outbreaks- Interactions with other species (competition, predation, symbiosis)- Changes in the availability of resources- Migration of individuals into or out of the population【Answer】: Factors that could affect population growth outside of a simulation include environmental changes, human activities, disease outbreaks, interactions with other species, changes in resource availability, and migration.

Explanation

Dominant and recessive traits play a crucial role in natural selection. A dominant trait is one that will be expressed in the phenotype even if only one copy of the allele is present. A recessive trait, on the other hand, will only be expressed if two copies of the allele are present. In natural selection, individuals with traits that are advantageous for their environment are more likely to survive and reproduce. If a dominant trait provides a survival or reproductive advantage, it will become more common in the population over time. Conversely, if a recessive trait is advantageous, it may become more common if it is paired with a dominant allele that does not confer a significant advantage.