Population Genetics flashcards #1

Question 1

A variation is

Answer 1

changes in the phenotypes of organisms.

Question 2

Variations of organism can be caused by

Answer 2

mutations, environmental factors, inheritance, meiosis, recombination of chromosomes

Question 3

crossing over is

Answer 3

sharing of genetic information between chromosomes, leads to variation.

Question 4

Evolution occurs when

Answer 4

there is an increase of reproductive rates of organisms with beneficial variations.

Question 5

Evolution is

Answer 5

a change of one organism into a different, more specialized, organism, these organisms no longer breed.(share genetic information)

Question 6

Adaptation is

Answer 6

a phenotypic change of an organism, but breeding is still possible between other, non-changed organisms. (still share genetic information)

Question 7

Extant means

Answer 7

living relative

Question 8

Cladograms are

Answer 8

model to shows relationships between organisms

Question 9

Microevolution

Answer 9

small genetic changes in organisms leading into different but similiar organisms. Gray wolf and Dog.

Question 10

Macroevolution

Answer 10

large genetic changes in organisms leading into very different organisms.