Evolution and Mutation Concepts

Evolution and Mutation Concepts

Assessment

Interactive Video

Biology, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video explains evolution as changes in allele frequencies within a population over time, leading to speciation. It emphasizes that individuals do not evolve, but populations do. Mutations, which are changes in DNA sequences, are highlighted as the ultimate source of genetic variability. These mutations can be spontaneous or caused by external factors like radiation or chemicals. The video outlines that mutations must occur in gametes to be inherited and are random events. It concludes by illustrating how mutations can alter allele frequencies, driving evolution.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the smallest unit that can undergo evolution?

A gene

An individual

A population

A species

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process called when a new species is formed due to accumulated changes in allele frequencies?

Natural selection

Adaptation

Speciation

Mutation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do individual genotypes remain unchanged throughout their lifetime?

Because they adapt to the environment

Because they are born with fixed alleles

Because they mutate frequently

Because they can evolve

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a mutation?

A change in the DNA sequence

A change in behavior

A change in population size

A change in the environment

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a potential cause of mutations?

Natural selection

Radiation exposure

Spontaneous replication errors

Chemical exposure

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ultimate source of all genetic variations?

Genetic drift

Mutations

Gene flow

Natural selection

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For a mutation to be passed on to the next generation, where must it occur?

In the skin cells

In the gametes

In the muscle cells

In the brain cells

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