Chapter 6: Meiosis and Mendel

Mitosis and Meiosis

Launch the Interactive for an animated, side-by-side comparison of mitosis and meiosis.

http://www.pbs.org/wgbh/nova/body/how-cells-divide.html

(Main Idea: Body cells are diploid, gametes are haploid.)

 

 

Stages of Meiosis

Animation of meiosis with text descriptions of each stage

http://www.cellsalive.com/meiosis.htm

(Main Idea: Cells go through two rounds of division in meiosis.)

 

 

Mendel’s Pea Plants

Interactive tutorial describing Mendel’s experimental subject, the pea plant

http://www.dnalc.org/view/16002-Gregor-Mendel-and-pea-plants.html

(Main Idea: Mendel’s data revealed pattern of inheritance.)

 

 

Traits as Discrete Units

Interactive tutorial describing Mendel’s observation that traits inherited from parents don’t blend together

http://www.dnalc.org/view/16170-Animation-3-Gene-s-don-t-blend-.html

(Main Idea: Mendel’s data revealed pattern of inheritance.)

 

 

Mendel’s Paper

English translation of Mendel’s 1865 research report, linked to a glossary of terms

http://www.mendelweb.org/Mendel.html

http://www.mendelweb.org/Mendel.html

(Main Idea: Mendel’s data revealed pattern of inheritance.)

 

 

Genotype

Interactive tutorial describing Mendel’s conclusion from looking at phenotypes that genes come in pairs

http://www.dnalc.org/view/16154-Animation-2-Genes-Come-in-Pairs.html

(Main Idea: Genes influence the development of traits.)

 

 

Dominance

Interactive tutorial describing Mendel’s conclusion that some genes are dominant

http://www.dnalc.org/view/16182-Animation-4-Some-genes-are-dominant-.html

(Main Idea: Genes influence the development of traits.)

 

 

Punnett Squares

Interactive tutorial showing how Punnett squares can be used to keep track of the alleles in a genetic cross

http://www.dnalc.org/view/16192-Animation-5-Genetic-inheritance-follows-rules-.html

(Main Idea: Punnett squares illustrate genetic crosses.)

 

 

Monohybrid Cross

Simulation in which you move genes into a Punnett square to predict the possible outcomes of a monohybrid cross

http://www.zerobio.com/drag_gr11/mono.htm

http://www.zerobio.com/drag_gr11/mono.htm

(Main Ideas: A monohybrid cross involves one trait. Heredity patterns can be calculated with probability.)

 

 

Dihybrid Cross

Tutorial showing how to use a Punnett square to predict the possible outcomes of a dihybrid cross; part of The Biology Project (http://www.biology.arizona.edu/), developed at the University of Arizona

http://www.biology.arizona.edu/mendelian_genetics/problem_sets/dihybrid_cross/03t.html

http://www.biology.arizona.edu/mendelian_genetics/problem_sets/dihybrid_cross/03t.html

(Main Ideas: A dihybrid cross involves two traits. Heredity patterns can be calculated with probability.)

 

 

Crossing Over

Animation of meiosis showing how chromosomal crossovers can occur

http://www.johnkyrk.com/meiosis.html

(Main Idea: Crossing over during meiosis increases genetic diversity.)