Catalyst #5 Pg. 19Semester 2 Table of Contents

4. Lesson 59- Natural Selection Lab Pg. 11-14

5. Lesson 60- Mutations and Evolution Pg. 15-18

6. Lesson 62- Genetic Variation Pg. 19-22

Assigned Vocabulary-

Vocabulary Due TODAY

8. Gene Pool9. Mutation10. Genetic Variation11. Genetic Diversity12. Allele FrequencyJustify your answer in complete and

sentences.

Announcements

• Notebook Check: 2/11

Question of the Day

• How do mutations in a gene pool increase genetic diversity?

Get Ready for Review Notes- Pg. 20Title: Genetic Variation

Genetic means• Genes• DNA

Variation means: • Differences• variety

Genetic Variation

• Definition- Differences in traits• ** the more genetic variation, the more likely

a species is to survive.**

Independent Activity: Genetic Variation Worksheet (15 min)- Pg.

21

What causes genetic variation?• A MUTATION:– A change in DNA sequence– Occur naturally or via chemicals or radiation

Quick write: Pg. 21

Why is genetic variation important to a species?

Answer:• If there is genetic variation, then some

individuals in a species will be more fit than others. This ensures that some individuals of the species will survive and keep the species going.

• If there is no genetic variation, then all individuals will be exactly the same. This could be deadly if there is a change in the environment. The species could go extinct because none will be fit for the environment.

Example: Pg. 21• Which population of hares has a better chance of survival

as a species? Why

Population A Population B

Population B

• Because it has more genetic variation than population A so there will be some individuals that are more fit if the environment were to change. Thus the species has a higher chance of survival.

TAKE HOME MESSAGE:Genetic variation increases a species’ chance of survival

Variation good survival

Genetic Variation Worksheet with Hares (15 min) pg. 21

TASMANIAN DEVIL ARTICLE PG. 22 (35 MIN)

• Quietly with your partner, read the article.

• Take 5 bullet point notes on pg. 22• When you are done answer the

reading comprehension questions

ANSWER QUESTION OF THE DAY PG. 22

Minimum of 4 sentences.How do mutations in a gene pool increase genetic diversity? Give an example to support your answer.