Evolution & Natural Selection

Question 1

Evolution Caused by…

Answer 1

Change of allele frequencies of the population

Question 2

Natural Selection (def)

Answer 2

Organisms born w/ characteristics which help them survive

Question 3

Geologist; “Earth very old”

Answer 3

George Buffon

Question 4

Paleontologist; “fossils show waves of extinction”

Answer 4

George Cuvier

Question 5

Biologist; “species change over time”

Answer 5

Jean Baptiste Lamark

Question 6

Geologist; “earth changing not static”

Answer 6

Charles Lyell

Question 7

Earth age pre 19th Century

Answer 7

6000-7000 yrs. old

Question 8

Darwins Ship

Answer 8

“the Beagle” ; converted warship

Question 9

x2 Galapagos patterns

Answer 9

1. Traits shared within populations/ species

2. Similarity between fossils and living species

Question 10

Darwin Published;

Answer 10

‘Origin of Species”

Question 11

Darwin challenged 2 biblical beliefs;

Answer 11

1. world is only 6000 yrs. old

2. Species were placed directly by God

Question 12

x4 Mechanisms of Evolution

Answer 12

1. Mutation
2. Genetic drift
3. Migration
4. Natural Selection

Question 13

Evolution & Natural Selection…

Answer 13

Not the same thing!

Question 14

Mutations

Answer 14

• Direct change in DNA

- Change in DNA sequence changes Allele

Question 15

Mutagens

Answer 15

Chemical which induce mutations

Question 16

Genetic Drift

Answer 16

Change in Allele freq. is NOT related to alleles influence on reproductive success

Question 17

Migration

Answer 17

Movement of individuals from one population to another

A.K.A. Gene Flow

Question 18

Natural Selection characteristics/ survival of the fittest

Answer 18

1. Trait variation
2. Variation must be inheritable
3. Differential reproductive success

Question 19

Fitness

Answer 19

Measure of a relative amount of reproduction of an individual with a specific Phenotype

Question 20

Molecular Biology

Answer 20

common genetic sequences link all life forms