12+BIOL151X+S11+Speciation+Sakai

12+BIOL151X+S11+Speciation+Sakai - Real cases present a...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
1 10 Speciation Activity adapted from M. G. Kelly 2003
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Quiz: Two sister species that look identical but differ in the sizes of seeds they consume are differentiated by which species concept: A. Biological B. Morphological C. Ecological D. Phylogenetic
Background image of page 2
3 Quiz: Two sister species that do not interbreed are differentiated by which species concept: A. Biological B. Morphological C. Ecological D. Phylogenetic
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Quiz: Gene flow, drift, mutation, and selection all combine to influence A. the amount of genetic variation that exists in a population. B. the process of evolution by natural selection. C. the process by which new species form. D. A, B, and C. E. A and C.
Background image of page 4
5 Quiz: Physical separation of an ancestral species into two groups that become different over time is called A. Allopatric speciation B. Sympatric speciation C. Polyploidy D. A hybrid zone E. Temporal isolation
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Speciation in real populations We’ve reduced complex evolutionary processes down to simple definitions.
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Real cases present a much muddier picture of the process of new species formation. • What factors are important in deciding what factors influence speciation in real populations? 7 #2 My conclusion about the formation of species in the Apple Maggot Fly is that A. they are not distinct species. B. they are speciating via allopatric processes. C. they are speciating via sympatric processes. 8 New data • The Rhagoletis system has been a leading example of sympatric speciation by host-race formation since the 1960s. In 2003 (the year this case study was published) a new piece of genetic evidence was discovered: the one host-race has chromosomal rearrangements (supergenes) that might protect the association of early diapause timing alleles with warm weather tolerance. The supergene arose in allopatry (in Mexico). This event could have kick-started the differences between the host-races....
View Full Document

This note was uploaded on 05/01/2011 for the course BIOL 1510 taught by Professor Jungh.choi during the Spring '07 term at Georgia Institute of Technology.

Page1 / 8

12+BIOL151X+S11+Speciation+Sakai - Real cases present a...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online