Bio Evolution Unit

Question 1

Phylogeny

Answer 1

Study of the evolutionary history of lineages of organisms.

Question 2

Cladogram

Answer 2

Helps to visualize the evolutionary lineage of organisms.

Question 3

Five Sources of Genetic Variation

Answer 3

Mutations
Genetic Recombinations
Lateran Gene Transfer
Single Gene and Polygenic Traits

Question 4

Mutation

Answer 4

A change in the DNA sequence of an organism. (Sickle Cell Disease)

Question 5

Genetic Recombination

Answer 5

Exchange of Genetic Information. (Prophase I during Meiosis)

Question 6

Lateral Gene Transfer

Answer 6

Giving Genetic Material Not Through Sex/Reproduction.(Conjugation)

Question 7

Single Gene

Answer 7

Influenced only by one gene with only two phenotypes. (Type of ear lobe, dimples, widow’s peak, etc.)

Question 8

Polygenic Traits

Answer 8

influenced by more than two genes with more than two phenotypes. (Height, Weight, Hair color, etc.)

Question 9

Gene Pool

Answer 9

A common grouping of genes within a population.

Question 10

Allele frequency

Answer 10

The number of times an allele occurs is a gene pool. (Expressed as a % of all alleles in that gene pool.)

Question 11

Evolution Definition

Answer 11

Involving any change in the frequency of alleles in a population over time.

Question 12

Speciation

Answer 12

Two separate species evolving.

Question 13

Species

Answer 13

Closely related: mate and produce fertile offspring.

Question 14

Reproduvtive Isolation

Answer 14

Species are so different, they no longer mate.

Question 15

The Ship Charles Darwin Sailed On

Answer 15

H.M.S. Beagle.