Genetics of pops

Question 1

define gene pool

Answer 1

every copy of every allele at every locus in all indiv

Question 2

define fixed gene pool

Answer 2

only one allele exists at a locus

Question 3

what if there was random mating in gene pool

Answer 3

allel freq stays the same

Question 4

assumptions of HWE

Answer 4

1. random mating
2. infinitely large pop
3. no gene flow/migration
4. no mutations
5. all indiv have equal survival and repro

Question 5

why is HWE useful

Answer 5

1. tells us if pop is evolving

2. allow estimation of those carrying a diseased allele

Question 6

what did mendel’s pea plants provide evidence of?

Answer 6

genes. led to understanding of evolutionary basis

Question 7

define evol

Answer 7

• descent with modif

- change in genetic composition from one gen to another

Question 8

define microevolution

Answer 8

rapid changes, one gen to next w/in pop

Question 9

define macroevolution

Answer 9

slow, fossil record and relationships between organisms

Question 10

ex of microevolution

Answer 10

beaks of finches

Question 11

ex of macroevolution

Answer 11

Hox gene for thoracic vertebrae in pythons vs chickens