Cumulative Review Bio 1 (Patterns of inheritance, Evolutionary change, speciation/extintion)

Question 1

Heterozygous

Answer 1

Individual has inherited two diff. alleles (carrier)

Question 2

Homozygous

Answer 2

Individual has inherited two same alleles

Question 3

Dominant Alleles hide..

Answer 3

recessive alleles in the herterozygote

Question 4

Inherited Recessive Disorders (3)

Answer 4

Cystic Fibrosis, Sickle Cell Anemia, Tay Sachs

Question 5

Test Cross

Answer 5

determine if dominant phenotype is heterozygous or homozygous

Question 6

Bio Evolution

Answer 6

genetic change in population over time(more or less frequent)

Question 7

Evolutionary Fitness

Answer 7

reproductive success of organism

Question 8

Adaptation

Answer 8

trait that increases evolutionary fitness

Question 9

For Natural Selection to select adaptive traits the adaptive traits must..

Answer 9

already exist in population

Question 10

Genetic drift can cause what?

Answer 10

evolution (due to chance)

Question 11

Homologous Structures

Answer 11

organisms that share structures due to common ancestors (fins of a whale and legs of a wolf)

Question 12

Analogous Structures

Answer 12

organisms share similar structures bc of similar natural selection pressures but evolve independently

Question 13

Species

Answer 13

Group of organisms that are reproductively isolated (cannot interbreed with other organisms)

Question 14

New species can arise when?

Answer 14

When populations become reproductively isolated (physical separation-islands/canyons)

Question 15

Allopatric Speciation

Answer 15

reproduction due to physical separation like islands/ canyons