WorksheetsEvolution and Speciation Quiz
Total questions: 20
Worksheet time: 10mins
Evolution at the population level is defined as:
Changes in phenotype
Changes in allele frequencies over time
Formation of new species
Behavioral change
The Hardy-Weinberg principle describes:
A rapidly evolving population
A non-evolving population in genetic equilibrium
A population experiencing drift
A species undergoing selection
Which is NOT a Hardy-Weinberg condition?
No mutations
No gene flow
Small population
Random mating
Mutation is important because it:
Lowers fitness
Is the ultimate source of new alleles
Prevents selection
Eliminates diversity
Gene flow tends to:
Make populations more similar
Create new species
Increase mutation rate
Reduce migration
Nonrandom mating occurs when:
Individuals mate randomly
Individuals choose mates based on traits
Mating is prevented
Gametes cannot fuse
Sexual selection is a form of:
Natural selection
Genetic drift
Polyploidy
Mutation
Genetic drift is strongest in:
Large populations
Small populations
Fossils
Asexual organisms
A population drastically reduced by a disaster experiences:
Founder effect
Bottleneck effect
Natural selection
Polyploidy
The founder effect involves:
New species forming
A few individuals starting a new population
High mutation rates
Hybridization
Natural selection requires:
Gene flow
Variation, inheritance, and differential reproduction
Polyploidy
Genetic drift
Directional selection favors:
Both extremes
The average phenotype
One extreme phenotype
Random traits
Stabilizing selection favors:
Both extremes
The average phenotype
One extreme
Rare alleles
Disruptive selection favors:
The average
One extreme
Both extremes
No traits
Fitness refers to:
Strength
Survival only
Reproductive success relative to others
Appearance
Adaptation is a trait that:
Lowers fitness
Is learned
Increases survival or reproduction
Cannot be inherited
Microevolution is defined as:
New species forming
Small allele frequency changes
Mass extinction
Mutation only
Macroevolution refers to:
Drift within populations
Speciation and large-scale evolution
Gene flow
Mutation only
The ultimate source of variation is:
Drift
Mutation
Natural selection
Polyploidy
Gene flow prevents:
Migration
Selection
Speciation
Mutation
