Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Evolution & Genetics: Figures on Natural Selection, Alleles & Population Genetics, Slides of Biology
Various figures on evolution and genetics, illustrating concepts such as descent with modification and natural selection, allele frequencies, and population genetics. The figures depict the galapagos islands, various plant species, chromosomes, human and animal skeletons, webbing, phenotypes and genotypes, and the impact of natural selection on allele frequencies. Useful for students studying biology, genetics, or evolution.
Typology: Slides
1 / 11
Related documents
Partial preview of the text
Download Evolution & Genetics: Figures on Natural Selection, Alleles & Population Genetics and more Slides Biology in PDF only on Docsity!
Fig. 13-1c North America ATLANTIC OCEAN Great Britain Brazil The Galápagos Islands PACIFIC Pinta^ OCEAN Marchena Genovesa Santiago Fernandina Pinzón Isabela San Cristobal Florenza Española Daphne Islands Santa Cruz Santa Fe 40 miles Equator 0 40 km 0 Europe Africa South America Argentina Cape Horn Cape of Good Hope PACIFIC OCEAN Equator New Zealand Australia Tasmania
The theory of evolution describes descent
with modification by natural selection
Fig. 13- Terminal bud Lateral buds Leaves Kale Stem Brussels sprouts Cauliflower Cabbage Wild mustard Kohlrabi Flower clusters Flowers and stems Broccoli
Artificial selection (breeding) shows the
potential for change by natural means
Fig. 13-3b Chromosome with allele conferring resistance to pesticide Additional applications will be less effective, and the frequency of resistant insects in the population will grow Survivors Pesticide application
Fig. 13-5a Humerus Radius Ulna Carpals Metacarpals Phalanges Human Cat Whale Bat
Descent with modification
Fig. 13-9a
Webbing
No webbing
Fig. 13-9b Phenotypes 320 ––– 500 Genotypes Number of animals (total = 500) Genotype frequencies Number of alleles in gene pool (total = 1,000) Allele frequencies WW Ww ww 320 160 20 = 0. 160 ––– 500
= 0.
20 ––– 500
= 0.
640 W 160 W + 160 w 40 w 800 1,
= 0.8 W
200 1, = 0.2 w
Fig. 13-UN Allele frequencies Genotype frequencies Dominant homozygotes Heterozygotes Recessive homozygotes p + q = 1 p 2
- 2 pq + q 2 = 1
Fig. 13-11a- Original population
Fig. 13-11a- Original population Bottlenecking event
Fig. 13-11a- Original population Bottlenecking event Surviving population
Fig. 13- Original population Frequency of individuals Original population Evolved population Phenotypes (fur color) Stabilizing selection Directional selection Disruptive selection