Macro & Microevolution of Humans

Question 1

Population Genetics

Answer 1

the study of changes in gene frequencies and genetic variation in populations.

Question 2

Locus

Answer 2

a region of DNA sequence on a chromosome that codes for a trait (eye color)

Question 3

Allele

Answer 3

a specific DNA sequence at a locus that codes for a form of a trait (brown eyes)

Question 4

Genotype

Answer 4

genetics of an organism

Question 5

Phenotype

Answer 5

outward appearance of an organism

Question 6

Genetic Drift

Answer 6

random changes in gene frequencies caused by random events: more common in small populations

Question 7

Gene Flow

Answer 7

changes in gene frequencies caused by migration and reproduction by migrants

Question 8

Mutation

Answer 8

changes in gene frequencies caused by changes in the DNA sequence: rare doesn’t impact natural populations at high rate.

Question 9

Natural Selection

Answer 9

changes in gene frequencies caused by different rates of survival and reproduction of different genotypes.