What is genetic drift?

Patterns of evolution

Quiz
•
Biology
•
12th Grade
•
Medium
Sarah Pepperdine
Used 2+ times
FREE Resource
37 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A) A process where individuals with a particular allele leave more descendants by chance, causing the allele to become common in a population.
B) A process where natural selection favors certain traits, leading to evolution.
C) A process where mutations occur at a constant rate, leading to genetic variation.
D) A process where individuals migrate to new areas, leading to gene flow.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are smaller populations less likely to follow the laws of probability seen in bell curves or Punnett squares?
A) Because the frequencies of alleles are more random.
B) Because they have more genetic diversity.
C) Because they are more influenced by natural selection.
D) Because they have a higher mutation rate.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is gene flow?
The movement of genes within a population
The movement of an individual from one population to another
The random change in allele frequencies in a population
The process of natural selection
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is often a result of gene flow?
Natural selection
Genetic drift
Mutation
Speciation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can gene flow introduce to a population?
New species
New genes
New habitats
New behaviors
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is extinction?
When an entire species dies out.
When a species migrates to a new habitat.
When a species evolves into a new form.
When a species increases in population.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do populations have to compete for limited resources?
To increase their size.
To adapt and survive.
To migrate to new areas.
To become extinct.
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