BI226- Final Exam Guide - Comprehensive Notes for the exam ( 65 pages long!)

351 views65 pages
29 Mar 2018
School
Department
Course

For unlimited access to Study Guides, a Grade+ subscription is required.

WLU
BI226
Final EXAM
STUDY GUIDE
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 65 pages and 3 million more documents.

Already have an account? Log in
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 65 pages and 3 million more documents.

Already have an account? Log in
Heredity
A"brief"History"of"our"understanding"prior"to"Mendel
The*Greeks
Pthagoras"570"BC
Best"known"for"the"Pythagorean"theorem:
a2"+"b2"="c2
-
Believed"in"spermism
-
-
Mother"only"provides"nourishment"of"the"fetus"with"no"traits"passed"to"offspring
-
Aristotle"384"BC
Refuted"(disagreed)"spermism"to"some"extent"by"logic
if"only"the"sperm"determined"the"traits,"then"how"would"you"get"a"woman?
-
Observed"that"traits"can"skip"generations"and"that"environmental"changes"to"body"are"
not"passed"onto"offspring
Believed"that"sperm"provided"instructions"to"a"female"equivalent"to"produce"fetus
Fetus"was"thought"to"be"shaped"from"menstrual"blood"in"the"mother
-
This"information"transfer"we"now"know"to"be"DNA
-
Preformation*Theory
Europe"1500s"1800’s
Swiss-German"alchemist"Paracelsus"thought"that"mini-humans"in"sperm"could"be"
incubated"in"horse-dung"and"be"born”"after"incubation"for"several"months.
Homonculus"theory"promoted"further"in"1694"by"Nicolaas"Hartsoeker,"a"Dutch"
physicist"and"microscopist.
It"appeared"that"a"mini-human"was"in"sperm
-
Chapter(1:(DNA(is(the(Genetic(Material(
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 65 pages and 3 million more documents.

Already have an account? Log in
Modern*Theorems
Europe"1800s
Charles"Lyell’s"“Principles"of"Geology”"(1830-1833)
Rock"formation"was"not"static,"that"some"rocks"had"formed"from"pre-existing"rock
-
Contrary"to"biblical" teachings.
-
Thomas"Malthus"“An"Essay"on"the"Principle" of"Population”"published"under"a"
pseudonym"in"1798.
The"human"population"was"in"constant"struggle"with"its"limited" resource"pool.
-
This"was"a"key"influence"for"Darwins"theory"of"Natural"Selection
-
Theory*of*Natural*Selection
Europe"1844-1859
Charles*Darwin was"a"naturalist"and"assembled"a"large"collection"of"samples"from"his"
voyage"on"the"Beagle"1831-1836
From"his"samples"he"found"living"animals"resembled"animals"from"fossil"records"that"
were"much"larger"in"size
-
On"the"Galapagos"islands"he"noticed"that"birds"on"each"island"had"different"beak"sizes
-
This"information,"coupled"with"Lyells"and"Malthus"works"suggested"that"life"changed"
gradually"over"time"(just"like"rock"formation)"and"that"these"changes"were"due"to"a"
constant"struggle"with"limited"resources"(Natural"Selection)
-
Alfred"Russel"Wallace
Like"Darwin,"Wallace" was"a"young"naturalist"who"visited"the"Malay"Archipelago"in"
southeastern"Asia
Published"a"paper"in"1855"that"was"very"similar"to"Darwin’s"writings.
Darwin"sat"on"his"writings"for"almost"10"years,"but"upon"reading"Wallaces" paper,"
Darwin"published"his"work
-
Heredity*and*Natural*Selection
Darwin’s"Conundrum
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-3 of the document.
Unlock all 65 pages and 3 million more documents.

Already have an account? Log in

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
1 Booster Class